From 31a7d1fd17673ba23ae59fcc3a51b0358ceddb42 Mon Sep 17 00:00:00 2001
From: o-tsaruk <oleksandr.v.tsaruk@gmail.com>
Date: Thu, 10 Aug 2023 14:03:10 +0300
Subject: [PATCH] M2

---
 Cargo.lock                                    | 2061 +++++++++++------
 crates/builder/src/cli.rs                     |    6 +
 crates/builder/src/commands.rs                |    1 +
 crates/builder/src/main.rs                    |    9 +-
 crates/builder/src/process/container.rs       |  136 +-
 crates/builder/src/process/worker.rs          |  429 +++-
 crates/common/Cargo.toml                      |   28 +-
 crates/common/artifacts/astar.scale           |  Bin 193455 -> 0 bytes
 crates/common/src/config.rs                   |    9 +-
 crates/common/src/lib.rs                      |    1 -
 crates/common/src/logging.rs                  |    1 +
 crates/common/src/rpc.rs                      |  374 +++
 crates/common/src/rpc/mod.rs                  |  369 ---
 crates/common/src/rpc/schemas.rs              |    2 -
 crates/db/src/build_session.rs                |    4 -
 crates/db/src/node.rs                         |    5 +-
 crates/event_client/src/cli.rs                |   26 +-
 crates/event_client/src/cli/initialize.rs     |  152 +-
 crates/event_client/src/cli/traverse.rs       |   67 +-
 .../event_client/src/cli/update_contract.rs   |    4 +-
 crates/event_client/src/cli/watch.rs          |  167 +-
 crates/event_client/src/main.rs               |   12 +-
 crates/event_client/src/utils.rs              |   28 +-
 crates/migration/src/cli.rs                   |    6 +
 crates/migration/src/lib.rs                   |    4 +
 .../m20220101_000014_remove_node_schema.rs    |   36 +
 .../m20220101_000015_remove_rust_version.rs   |   54 +
 crates/migration/src/main.rs                  |    2 +-
 crates/patron/Cargo.toml                      |    1 +
 crates/patron/src/commands.rs                 |   44 +-
 crates/patron/src/commands/build.rs           |  119 +
 crates/patron/src/commands/deploy.rs          |  259 +--
 crates/patron/src/commands/verify.rs          |   91 +
 crates/patron/src/config.rs                   |    3 -
 crates/patron/src/main.rs                     |    8 +
 crates/patron/src/process.rs                  |  297 +++
 crates/server/Cargo.toml                      |    1 -
 crates/server/src/handlers/auth/login.rs      |   10 +-
 .../src/handlers/build_sessions/create.rs     |   11 +-
 .../src/handlers/build_sessions/details.rs    |    7 -
 .../src/handlers/build_sessions/latest.rs     |    1 -
 .../src/handlers/build_sessions/list.rs       |    2 -
 .../src/handlers/build_sessions/logs.rs       |    1 -
 .../src/handlers/build_sessions/metadata.rs   |    1 -
 .../src/handlers/build_sessions/status.rs     |    1 -
 .../server/src/handlers/contracts/details.rs  |   11 +-
 .../server/src/handlers/contracts/events.rs   |    5 +-
 crates/server/src/handlers/contracts/mod.rs   |    3 +-
 crates/server/src/handlers/files/upload.rs    |    1 -
 crates/server/src/handlers/keys/delete.rs     |    4 +-
 crates/server/src/handlers/keys/list.rs       |    2 +-
 crates/server/src/handlers/keys/verify.rs     |    8 +-
 crates/server/src/handlers/payment/check.rs   |   86 +-
 crates/server/src/main.rs                     |    5 +-
 crates/server/src/schema.rs                   |    7 +-
 docs/cli.md                                   |   13 +-
 docs/self-hosted.md                           |    5 +-
 flake.lock                                    |   30 +-
 flake.nix                                     |   29 +-
 nix/build-stages.nix                          |   54 +
 nix/cargo-contract.nix                        |   28 -
 nix/ink-builder.nix                           |   86 -
 62 files changed, 3264 insertions(+), 1963 deletions(-)
 delete mode 100644 crates/common/artifacts/astar.scale
 create mode 100644 crates/common/src/rpc.rs
 delete mode 100644 crates/common/src/rpc/mod.rs
 delete mode 100644 crates/common/src/rpc/schemas.rs
 create mode 100644 crates/migration/src/m20220101_000014_remove_node_schema.rs
 create mode 100644 crates/migration/src/m20220101_000015_remove_rust_version.rs
 create mode 100644 crates/patron/src/commands/build.rs
 create mode 100644 crates/patron/src/commands/verify.rs
 create mode 100644 crates/patron/src/process.rs
 create mode 100644 nix/build-stages.nix
 delete mode 100644 nix/cargo-contract.nix
 delete mode 100644 nix/ink-builder.nix

diff --git a/Cargo.lock b/Cargo.lock
index 4dd305a..7e78856 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -13,12 +13,60 @@ dependencies = [
 ]
 
 [[package]]
-name = "addr2line"
-version = "0.17.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9ecd88a8c8378ca913a680cd98f0f13ac67383d35993f86c90a70e3f137816b"
+name = "ac-compose-macros"
+version = "0.4.0"
+source = "git+https://github.com/scs/substrate-api-client?branch=polkadot-v0.9.43#6faaf232a8c5761d4ce69d0006d5312956f64bdc"
+dependencies = [
+ "ac-primitives",
+ "log",
+ "maybe-async",
+]
+
+[[package]]
+name = "ac-node-api"
+version = "0.4.0"
+source = "git+https://github.com/scs/substrate-api-client?branch=polkadot-v0.9.43#6faaf232a8c5761d4ce69d0006d5312956f64bdc"
+dependencies = [
+ "ac-primitives",
+ "bitvec",
+ "derive_more",
+ "either",
+ "frame-metadata",
+ "hex",
+ "log",
+ "parity-scale-codec",
+ "scale-info",
+ "serde",
+ "serde_json",
+ "sp-application-crypto",
+ "sp-core",
+ "sp-runtime",
+ "sp-runtime-interface",
+]
+
+[[package]]
+name = "ac-primitives"
+version = "0.7.0"
+source = "git+https://github.com/scs/substrate-api-client?branch=polkadot-v0.9.43#6faaf232a8c5761d4ce69d0006d5312956f64bdc"
 dependencies = [
- "gimli 0.26.2",
+ "frame-system",
+ "impl-serde",
+ "pallet-assets",
+ "pallet-balances",
+ "pallet-contracts",
+ "parity-scale-codec",
+ "primitive-types",
+ "scale-info",
+ "serde",
+ "serde_json",
+ "sp-application-crypto",
+ "sp-core",
+ "sp-core-hashing",
+ "sp-runtime",
+ "sp-runtime-interface",
+ "sp-staking",
+ "sp-version",
+ "sp-weights",
 ]
 
 [[package]]
@@ -27,7 +75,16 @@ version = "0.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a76fd60b23679b7d19bd066031410fb7e458ccc5e958eb5c325888ce4baedc97"
 dependencies = [
- "gimli 0.27.2",
+ "gimli",
+]
+
+[[package]]
+name = "addr2line"
+version = "0.20.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f4fa78e18c64fce05e902adecd7a5eed15a5e0a3439f7b0e169f0252214865e3"
+dependencies = [
+ "gimli",
 ]
 
 [[package]]
@@ -42,7 +99,7 @@ version = "0.7.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fcb51a0695d8f838b1ee009b3fbf66bda078cd64590202a864a8f3e8c4315c47"
 dependencies = [
- "getrandom 0.2.9",
+ "getrandom 0.2.10",
  "once_cell",
  "version_check",
 ]
@@ -54,16 +111,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2c99f64d1e06488f620f932677e24bc6e2897582980441ae90a671415bd7ec2f"
 dependencies = [
  "cfg-if",
- "getrandom 0.2.9",
+ "getrandom 0.2.10",
  "once_cell",
  "version_check",
 ]
 
 [[package]]
 name = "aho-corasick"
-version = "1.0.1"
+version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "67fc08ce920c31afb70f013dcce1bfc3a3195de6a228474e45e1f145b36f8d04"
+checksum = "43f6cb1bf222025340178f382c426f13757b2960e89779dfcb319c32542a5a41"
 dependencies = [
  "memchr",
 ]
@@ -80,7 +137,7 @@ dependencies = [
  "bytes",
  "cfg-if",
  "http",
- "indexmap",
+ "indexmap 1.9.3",
  "schemars",
  "serde",
  "serde_json",
@@ -97,10 +154,10 @@ version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a0487f8598afe49e6bc950a613a678bd962c4a6f431022ded62643c8b990301a"
 dependencies = [
- "darling 0.20.1",
+ "darling 0.20.3",
  "proc-macro2",
  "quote",
- "syn 2.0.18",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -109,6 +166,18 @@ version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "250f629c0161ad8107cf89319e990051fae62832fd343083bea452d93e2205fd"
 
+[[package]]
+name = "allocator-api2"
+version = "0.2.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0942ffc6dcaadf03badf6e6a2d0228460359d5e34b57ccdc720b7382dfbd5ec5"
+
+[[package]]
+name = "android-tzdata"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e999941b234f3131b00bc13c22d06e8c5ff726d1b6318ac7eb276997bbb4fef0"
+
 [[package]]
 name = "android_system_properties"
 version = "0.1.5"
@@ -144,15 +213,15 @@ dependencies = [
 
 [[package]]
 name = "anstyle"
-version = "1.0.0"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41ed9a86bf92ae6580e0a31281f65a1b1d867c0cc68d5346e2ae128dddfa6a7d"
+checksum = "3a30da5c5f2d5e72842e00bcb57657162cdabef0931f40e2deb9b4140440cecd"
 
 [[package]]
 name = "anstyle-parse"
-version = "0.2.0"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e765fd216e48e067936442276d1d57399e37bce53c264d6fefbe298080cb57ee"
+checksum = "938874ff5980b03a87c5524b3ae5b59cf99b1d6bc836848df7bc5ada9643c333"
 dependencies = [
  "utf8parse",
 ]
@@ -178,9 +247,18 @@ dependencies = [
 
 [[package]]
 name = "anyhow"
-version = "1.0.71"
+version = "1.0.72"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3b13c32d80ecc7ab747b80c3784bce54ee8a7a0cc4fbda9bf4cda2cf6fe90854"
+
+[[package]]
+name = "approx"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c7d0618f0e0b7e8ff11427422b64564d5fb0be1940354bfe2e0529b18a9d9b8"
+checksum = "cab112f0a86d568ea0e627cc1d6be74a1e9cd55214684db5561995f6dad897c6"
+dependencies = [
+ "num-traits",
+]
 
 [[package]]
 name = "array-bytes"
@@ -202,9 +280,9 @@ checksum = "23b62fc65de8e4e7f52534fb52b0f3ed04746ae267519eef2a83941e8085068b"
 
 [[package]]
 name = "arrayvec"
-version = "0.7.2"
+version = "0.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8da52d66c7071e2e3fa2a1e5c6d088fec47b593032b254f5e980de8ea54454d6"
+checksum = "96d30a06541fbafbc7f82ed10c06164cfbd2c401138f6addd8404629c4b16711"
 
 [[package]]
 name = "assert_json"
@@ -245,18 +323,18 @@ checksum = "16e62a023e7c117e27523144c5d2459f4397fcc3cab0085af8e2224f643a0193"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.18",
+ "syn 2.0.28",
 ]
 
 [[package]]
 name = "async-trait"
-version = "0.1.68"
+version = "0.1.72"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9ccdd8f2a161be9bd5c023df56f1b2a0bd1d83872ae53b71a84a12c9bf6e842"
+checksum = "cc6dde6e4ed435a4c1ee4e73592f5ba9da2151af10076cc04858746af9352d09"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.18",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -298,7 +376,7 @@ dependencies = [
  "aws-smithy-types",
  "aws-types",
  "bytes",
- "fastrand",
+ "fastrand 1.9.0",
  "hex",
  "http",
  "hyper",
@@ -318,7 +396,7 @@ checksum = "1fcdb2f7acbc076ff5ad05e7864bdb191ca70a6fd07668dc3a1a8bcd051de5ae"
 dependencies = [
  "aws-smithy-async",
  "aws-smithy-types",
- "fastrand",
+ "fastrand 1.9.0",
  "tokio",
  "tracing",
  "zeroize",
@@ -472,7 +550,7 @@ dependencies = [
  "once_cell",
  "percent-encoding",
  "regex",
- "sha2 0.10.6",
+ "sha2 0.10.7",
  "time",
  "tracing",
 ]
@@ -506,7 +584,7 @@ dependencies = [
  "md-5",
  "pin-project-lite",
  "sha1",
- "sha2 0.10.6",
+ "sha2 0.10.7",
  "tracing",
 ]
 
@@ -521,7 +599,7 @@ dependencies = [
  "aws-smithy-http-tower",
  "aws-smithy-types",
  "bytes",
- "fastrand",
+ "fastrand 1.9.0",
  "http",
  "http-body",
  "hyper",
@@ -643,13 +721,13 @@ dependencies = [
 
 [[package]]
 name = "axum"
-version = "0.6.18"
+version = "0.6.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f8175979259124331c1d7bf6586ee7e0da434155e4b2d48ec2c8386281d8df39"
+checksum = "a6a1de45611fdb535bfde7b7de4fd54f4fd2b17b1737c0a59b69bf9b92074b8c"
 dependencies = [
  "async-trait",
  "axum-core",
- "bitflags",
+ "bitflags 1.3.2",
  "bytes",
  "futures-util",
  "headers",
@@ -705,9 +783,9 @@ dependencies = [
 
 [[package]]
 name = "axum-extra"
-version = "0.7.4"
+version = "0.7.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "febf23ab04509bd7672e6abe76bd8277af31b679e89fa5ffc6087dc289a448a3"
+checksum = "cebbcd90f811f93fc2a993024caecc1e8270d9d1eb9d3359edb3069c2096ea6f"
 dependencies = [
  "axum",
  "axum-core",
@@ -727,16 +805,16 @@ dependencies = [
 
 [[package]]
 name = "backtrace"
-version = "0.3.67"
+version = "0.3.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "233d376d6d185f2a3093e58f283f60f880315b6c60075b01f36b3b85154564ca"
+checksum = "4319208da049c43661739c5fade2ba182f09d1dc2299b32298d3a31692b17e12"
 dependencies = [
- "addr2line 0.19.0",
+ "addr2line 0.20.0",
  "cc",
  "cfg-if",
  "libc",
  "miniz_oxide",
- "object 0.30.3",
+ "object 0.31.1",
  "rustc-demangle",
 ]
 
@@ -754,10 +832,10 @@ dependencies = [
 ]
 
 [[package]]
-name = "base58"
+name = "base16ct"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6107fe1be6682a68940da878d9e9f5e90ca5745b3dec9fd1bb393c8777d4f581"
+checksum = "4c7f02d4ea65f2c1853089ffd8d2787bdbc63de2f0d29dedbcf8ccdfa0ccd4cf"
 
 [[package]]
 name = "base64"
@@ -781,6 +859,12 @@ dependencies = [
  "vsimd",
 ]
 
+[[package]]
+name = "base64ct"
+version = "1.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8c3c1a368f70d6cf7302d78f8f7093da241fb8e8807c05cc9e51a125895a6d5b"
+
 [[package]]
 name = "beef"
 version = "0.5.2"
@@ -816,6 +900,12 @@ version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
+[[package]]
+name = "bitflags"
+version = "2.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "630be753d4e58660abd17930c71b647fe46c27ea6b63cc59e1e3851406972e42"
+
 [[package]]
 name = "bitvec"
 version = "1.0.1"
@@ -844,7 +934,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3c2f0dc9a68c6317d884f97cc36cf5a3d20ba14ce404227df55e1af708ab04bc"
 dependencies = [
  "arrayref",
- "arrayvec 0.7.2",
+ "arrayvec 0.7.4",
  "constant_time_eq",
 ]
 
@@ -973,9 +1063,9 @@ dependencies = [
 
 [[package]]
 name = "bounded-collections"
-version = "0.1.7"
+version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07fbd1d11282a1eb134d3c3b7cf8ce213b5161c6e5f73fb1b98618482c606b64"
+checksum = "eb5b05133427c07c4776906f673ccf36c21b102c9829c641a5b56bd151d44fd6"
 dependencies = [
  "log",
  "parity-scale-codec",
@@ -995,7 +1085,7 @@ version = "0.1.0"
 dependencies = [
  "anyhow",
  "bollard",
- "clap 4.3.0",
+ "clap 4.3.19",
  "common",
  "db",
  "derive_more",
@@ -1057,6 +1147,12 @@ dependencies = [
  "syn 1.0.109",
 ]
 
+[[package]]
+name = "bytemuck"
+version = "1.13.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "17febce684fd15d89027105661fec94afb475cb995fbc59d2865198446ba2eea"
+
 [[package]]
 name = "byteorder"
 version = "1.4.3"
@@ -1081,9 +1177,21 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.0.79"
+version = "1.0.80"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "51f1226cd9da55587234753d1245dd5b132343ea240f26b6a9003d68706141ba"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "cfg-expr"
+version = "0.15.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "50d30906286121d95be3d479533b458f87493b30a4b5f79a607db8f5d11aa91f"
+checksum = "b40ccee03b5175c18cde8f37e7d2a33bcef6f8ec8f7cc0d81090d1bb380949c9"
+dependencies = [
+ "smallvec",
+]
 
 [[package]]
 name = "cfg-if"
@@ -1093,12 +1201,12 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "chrono"
-version = "0.4.24"
+version = "0.4.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4e3c5919066adf22df73762e50cffcde3a758f2a848b113b586d1f86728b673b"
+checksum = "ec837a71355b28f6556dbd569b37b3f363091c0bd4b2e735674521b4c5fd9bc5"
 dependencies = [
+ "android-tzdata",
  "iana-time-zone",
- "num-integer",
  "num-traits",
  "serde",
  "winapi",
@@ -1110,34 +1218,33 @@ version = "3.2.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4ea181bf566f71cb9a5d17a59e1871af638180a18fb0035c92ae62b705207123"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "clap_derive 3.2.25",
  "clap_lex 0.2.4",
- "indexmap",
+ "indexmap 1.9.3",
  "once_cell",
  "textwrap",
 ]
 
 [[package]]
 name = "clap"
-version = "4.3.0"
+version = "4.3.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "93aae7a4192245f70fe75dd9157fc7b4a5bf53e88d30bd4396f7d8f9284d5acc"
+checksum = "5fd304a20bff958a57f04c4e96a2e7594cc4490a0e809cbd48bb6437edaa452d"
 dependencies = [
  "clap_builder",
- "clap_derive 4.3.0",
+ "clap_derive 4.3.12",
  "once_cell",
 ]
 
 [[package]]
 name = "clap_builder"
-version = "4.3.0"
+version = "4.3.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4f423e341edefb78c9caba2d9c7f7687d0e72e89df3ce3394554754393ac3990"
+checksum = "01c6a3f08f1fe5662a35cfe393aec09c4df95f60ee93b7556505260f75eee9e1"
 dependencies = [
  "anstream",
  "anstyle",
- "bitflags",
  "clap_lex 0.5.0",
  "strsim",
 ]
@@ -1157,14 +1264,14 @@ dependencies = [
 
 [[package]]
 name = "clap_derive"
-version = "4.3.0"
+version = "4.3.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "191d9573962933b4027f932c600cd252ce27a8ad5979418fe78e43c07996f27b"
+checksum = "54a9bb5758fc5dfe728d1019941681eccaf0cf8a4189b692a0ee2f2ecf90a050"
 dependencies = [
  "heck 0.4.1",
  "proc-macro2",
  "quote",
- "syn 2.0.18",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -1207,13 +1314,18 @@ dependencies = [
  "blake2",
  "byte-unit",
  "figment",
+ "frame-metadata",
  "futures-util",
  "hex",
- "itertools",
+ "lru",
+ "pallet-contracts",
  "pallet-contracts-primitives",
  "parity-scale-codec",
  "serde",
- "subxt",
+ "sp-core",
+ "sp-version",
+ "substrate-api-client",
+ "tokio",
  "tracing-core",
  "tracing-subscriber 0.3.17",
 ]
@@ -1247,11 +1359,17 @@ dependencies = [
  "windows-sys 0.45.0",
 ]
 
+[[package]]
+name = "const-oid"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "795bc6e66a8e340f075fcf6227e417a2dc976b92b91f3cdc778bb858778b6747"
+
 [[package]]
 name = "constant_time_eq"
-version = "0.2.5"
+version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "13418e745008f7349ec7e449155f419a61b92b58a99cc3616942b926825ec76b"
+checksum = "21a53c0a4d288377e7415b53dcfc3c04da5cdc2cc95c8d5ac178b58f0b861ad6"
 
 [[package]]
 name = "convert_case"
@@ -1286,27 +1404,27 @@ dependencies = [
 
 [[package]]
 name = "cpufeatures"
-version = "0.2.7"
+version = "0.2.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3e4c1eaa2012c47becbbad2ab175484c2a84d1185b566fb2cc5b8707343dfe58"
+checksum = "a17b76ff3a4162b0b27f354a0c87015ddad39d35f9c0c36607a3bdd175dde1f1"
 dependencies = [
  "libc",
 ]
 
 [[package]]
 name = "cranelift-entity"
-version = "0.93.2"
+version = "0.95.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f42ea692c7b450ad18b8c9889661505d51c09ec4380cf1c2d278dbb2da22cae1"
+checksum = "40099d38061b37e505e63f89bab52199037a72b931ad4868d9089ff7268660b0"
 dependencies = [
  "serde",
 ]
 
 [[package]]
 name = "crc32c"
-version = "0.6.3"
+version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3dfea2db42e9927a3845fb268a10a72faed6d416065f77873f05e411457c363e"
+checksum = "d8f48d60e5b4d2c53d5c2b1d8a58c849a70ae5e5509b08a48d047e3b65714a74"
 dependencies = [
  "rustc_version",
 ]
@@ -1332,9 +1450,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-utils"
-version = "0.8.15"
+version = "0.8.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c063cd8cc95f5c377ed0d4b49a4b21f632396ff690e8470c29b3359b346984b"
+checksum = "5a22b2d63d4d1dc0b7f1b6b2747dd0088008a9be28b6ddf0b1e7d335e3037294"
 dependencies = [
  "cfg-if",
 ]
@@ -1345,6 +1463,18 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7a81dae078cea95a014a339291cec439d2f232ebe854a9d672b796c6afafa9b7"
 
+[[package]]
+name = "crypto-bigint"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf4c2f4e1afd912bc40bfd6fed5d9dc1f288e0ba01bfcc835cc5bc3eb13efe15"
+dependencies = [
+ "generic-array 0.14.7",
+ "rand_core 0.6.4",
+ "subtle",
+ "zeroize",
+]
+
 [[package]]
 name = "crypto-common"
 version = "0.1.6"
@@ -1413,12 +1543,12 @@ dependencies = [
 
 [[package]]
 name = "darling"
-version = "0.20.1"
+version = "0.20.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0558d22a7b463ed0241e993f76f09f30b126687447751a8638587b864e4b3944"
+checksum = "0209d94da627ab5605dcccf08bb18afa5009cfbef48d8a8b7d7bdbc79be25c5e"
 dependencies = [
- "darling_core 0.20.1",
- "darling_macro 0.20.1",
+ "darling_core 0.20.3",
+ "darling_macro 0.20.3",
 ]
 
 [[package]]
@@ -1437,16 +1567,16 @@ dependencies = [
 
 [[package]]
 name = "darling_core"
-version = "0.20.1"
+version = "0.20.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ab8bfa2e259f8ee1ce5e97824a3c55ec4404a0d772ca7fa96bf19f0752a046eb"
+checksum = "177e3443818124b357d8e76f53be906d60937f0d3a90773a664fa63fa253e621"
 dependencies = [
  "fnv",
  "ident_case",
  "proc-macro2",
  "quote",
  "strsim",
- "syn 2.0.18",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -1462,13 +1592,13 @@ dependencies = [
 
 [[package]]
 name = "darling_macro"
-version = "0.20.1"
+version = "0.20.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "29a358ff9f12ec09c3e61fef9b5a9902623a695a46a917b07f269bff1445611a"
+checksum = "836a9bbc7ad63342d6d6e7b815ccab164bc77a2d95d84bc3117a8c0d5c98e2d5"
 dependencies = [
- "darling_core 0.20.1",
+ "darling_core 0.20.3",
  "quote",
- "syn 2.0.18",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -1485,10 +1615,29 @@ dependencies = [
 ]
 
 [[package]]
-name = "derivative"
-version = "2.2.0"
+name = "der"
+version = "0.7.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0c7ed52955ce76b1554f509074bb357d3fb8ac9b51288a65a3fd480d1dfba946"
+dependencies = [
+ "const-oid",
+ "zeroize",
+]
+
+[[package]]
+name = "deranged"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8810e7e2cf385b1e9b50d68264908ec367ba642c96d02edfe61c39e88e2a3c01"
+dependencies = [
+ "serde",
+]
+
+[[package]]
+name = "derive-syn-parse"
+version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fcc3dd5e9e9c0b295d6e1e4d811fb6f157d5ffd784b8d202fc62eac8035a770b"
+checksum = "e79116f119dd1dba1abf1f3405f03b9b0e79a27a3883864bfebded8a3dc768cd"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1533,6 +1682,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
 dependencies = [
  "block-buffer 0.10.4",
+ "const-oid",
  "crypto-common",
  "subtle",
 ]
@@ -1592,9 +1742,23 @@ dependencies = [
 
 [[package]]
 name = "dyn-clone"
-version = "1.0.11"
+version = "1.0.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "304e6508efa593091e97a9abbc10f90aa7ca635b6d2784feff3c89d41dd12272"
+
+[[package]]
+name = "ecdsa"
+version = "0.16.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "68b0cf012f1230e43cd00ebb729c6bb58707ecfa8ad08b52ef3a4ccd2697fc30"
+checksum = "a4b1e0c257a9e9f25f90ff76d7a68360ed497ee519c8e428d1825ef0000799d4"
+dependencies = [
+ "der",
+ "digest 0.10.7",
+ "elliptic-curve",
+ "rfc6979",
+ "signature 2.1.0",
+ "spki",
+]
 
 [[package]]
 name = "ed25519"
@@ -1602,7 +1766,7 @@ version = "1.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "91cff35c70bba8a626e3185d8cd48cc11b5437e1a5bcd15b9b5fa3c64b6dfee7"
 dependencies = [
- "signature",
+ "signature 1.6.4",
 ]
 
 [[package]]
@@ -1633,9 +1797,28 @@ dependencies = [
 
 [[package]]
 name = "either"
-version = "1.8.1"
+version = "1.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a26ae43d7bcc3b814de94796a5e736d4029efb0ee900c12e2d54c993ad1a1e07"
+
+[[package]]
+name = "elliptic-curve"
+version = "0.13.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7fcaabb2fef8c910e7f4c7ce9f67a1283a1715879a7c230ca9d6d1ae31f16d91"
+checksum = "968405c8fdc9b3bf4df0a6638858cc0b52462836ab6b1c87377785dd09cf1c0b"
+dependencies = [
+ "base16ct",
+ "crypto-bigint",
+ "digest 0.10.7",
+ "ff",
+ "generic-array 0.14.7",
+ "group",
+ "pkcs8",
+ "rand_core 0.6.4",
+ "sec1",
+ "subtle",
+ "zeroize",
+]
 
 [[package]]
 name = "encode_unicode"
@@ -1658,11 +1841,17 @@ version = "1.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e48c92028aaa870e83d51c64e5d4e0b6981b360c522198c23959f219a4e1b15b"
 
+[[package]]
+name = "equivalent"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5443807d6dff69373d433ab9ef5378ad8df50ca6298caf15de6e52e24aaf54d5"
+
 [[package]]
 name = "errno"
-version = "0.3.1"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4bcfec3a70f97c962c307b2d2c56e358cf1d00b558d74262b5f929ee8cc7e73a"
+checksum = "6b30f669a7961ef1631673d2766cc92f52d64f7ef354d4fe0ddfd30ed52f0f4f"
 dependencies = [
  "errno-dragonfly",
  "libc",
@@ -1690,7 +1879,7 @@ name = "event_client"
 version = "0.1.0"
 dependencies = [
  "anyhow",
- "clap 4.3.0",
+ "clap 4.3.19",
  "common",
  "db",
  "derive_more",
@@ -1703,6 +1892,19 @@ dependencies = [
  "unix-ts",
 ]
 
+[[package]]
+name = "expander"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f360349150728553f92e4c997a16af8915f418d3a0f21b440d34c5632f16ed84"
+dependencies = [
+ "blake2",
+ "fs-err",
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
+]
+
 [[package]]
 name = "fake-simd"
 version = "0.1.2"
@@ -1724,16 +1926,32 @@ dependencies = [
  "instant",
 ]
 
+[[package]]
+name = "fastrand"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6999dc1837253364c2ebb0704ba97994bd874e8f195d665c50b7548f6ea92764"
+
+[[package]]
+name = "ff"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ded41244b729663b1e574f1b4fb731469f69f79c17667b5d776b16cda0479449"
+dependencies = [
+ "rand_core 0.6.4",
+ "subtle",
+]
+
 [[package]]
 name = "figment"
-version = "0.10.9"
+version = "0.10.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05d79dace1d256182aa00f1ead2e5042558f420af2e1ed24dd79e00214e9ed99"
+checksum = "4547e226f4c9ab860571e070a9034192b3175580ecea38da34fcdb53a018c9a5"
 dependencies = [
  "atomic",
  "pear",
  "serde",
- "toml 0.7.4",
+ "toml 0.7.6",
  "uncased",
  "version_check",
 ]
@@ -1797,13 +2015,38 @@ checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
 
 [[package]]
 name = "form_urlencoded"
-version = "1.1.0"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a9c384f161156f5260c24a097c56119f9be8c798586aecc13afbcbe7b7e26bf8"
+checksum = "a62bc1cf6f830c2ec14a513a9fb124d0a213a629668a4186f329db21fe045652"
 dependencies = [
  "percent-encoding",
 ]
 
+[[package]]
+name = "frame-benchmarking"
+version = "4.0.0-dev"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
+dependencies = [
+ "frame-support",
+ "frame-support-procedural",
+ "frame-system",
+ "linregress",
+ "log",
+ "parity-scale-codec",
+ "paste",
+ "scale-info",
+ "serde",
+ "sp-api",
+ "sp-application-crypto",
+ "sp-core",
+ "sp-io",
+ "sp-runtime",
+ "sp-runtime-interface",
+ "sp-std",
+ "sp-storage",
+ "static_assertions",
+]
+
 [[package]]
 name = "frame-metadata"
 version = "15.1.0"
@@ -1817,44 +2060,141 @@ dependencies = [
 ]
 
 [[package]]
-name = "funty"
-version = "2.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e6d5a32815ae3f33302d95fdcb2ce17862f8c65363dcfd29360480ba1001fc9c"
+name = "frame-support"
+version = "4.0.0-dev"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
+dependencies = [
+ "bitflags 1.3.2",
+ "environmental",
+ "frame-metadata",
+ "frame-support-procedural",
+ "impl-trait-for-tuples",
+ "k256",
+ "log",
+ "once_cell",
+ "parity-scale-codec",
+ "paste",
+ "scale-info",
+ "serde",
+ "smallvec",
+ "sp-api",
+ "sp-arithmetic",
+ "sp-core",
+ "sp-core-hashing-proc-macro",
+ "sp-debug-derive",
+ "sp-inherents",
+ "sp-io",
+ "sp-runtime",
+ "sp-staking",
+ "sp-state-machine",
+ "sp-std",
+ "sp-tracing",
+ "sp-weights",
+ "tt-call",
+]
 
 [[package]]
-name = "futures"
-version = "0.3.28"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "23342abe12aba583913b2e62f22225ff9c950774065e4bfb61a19cd9770fec40"
+name = "frame-support-procedural"
+version = "4.0.0-dev"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
 dependencies = [
- "futures-channel",
- "futures-core",
- "futures-executor",
- "futures-io",
- "futures-sink",
- "futures-task",
- "futures-util",
+ "Inflector",
+ "cfg-expr",
+ "derive-syn-parse",
+ "frame-support-procedural-tools",
+ "itertools",
+ "proc-macro-warning",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.28",
 ]
 
 [[package]]
-name = "futures-channel"
-version = "0.3.28"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "955518d47e09b25bbebc7a18df10b81f0c766eaf4c4f1cccef2fca5f2a4fb5f2"
+name = "frame-support-procedural-tools"
+version = "4.0.0-dev"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
 dependencies = [
- "futures-core",
- "futures-sink",
+ "frame-support-procedural-tools-derive",
+ "proc-macro-crate 1.3.1",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.28",
 ]
 
 [[package]]
-name = "futures-core"
-version = "0.3.28"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4bca583b7e26f571124fe5b7561d49cb2868d79116cfa0eefce955557c6fee8c"
+name = "frame-support-procedural-tools-derive"
+version = "3.0.0"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.28",
+]
 
 [[package]]
-name = "futures-executor"
+name = "frame-system"
+version = "4.0.0-dev"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
+dependencies = [
+ "cfg-if",
+ "frame-support",
+ "log",
+ "parity-scale-codec",
+ "scale-info",
+ "serde",
+ "sp-core",
+ "sp-io",
+ "sp-runtime",
+ "sp-std",
+ "sp-version",
+ "sp-weights",
+]
+
+[[package]]
+name = "fs-err"
+version = "2.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0845fa252299212f0389d64ba26f34fa32cfe41588355f21ed507c59a0f64541"
+
+[[package]]
+name = "funty"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6d5a32815ae3f33302d95fdcb2ce17862f8c65363dcfd29360480ba1001fc9c"
+
+[[package]]
+name = "futures"
+version = "0.3.28"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "23342abe12aba583913b2e62f22225ff9c950774065e4bfb61a19cd9770fec40"
+dependencies = [
+ "futures-channel",
+ "futures-core",
+ "futures-executor",
+ "futures-io",
+ "futures-sink",
+ "futures-task",
+ "futures-util",
+]
+
+[[package]]
+name = "futures-channel"
+version = "0.3.28"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "955518d47e09b25bbebc7a18df10b81f0c766eaf4c4f1cccef2fca5f2a4fb5f2"
+dependencies = [
+ "futures-core",
+ "futures-sink",
+]
+
+[[package]]
+name = "futures-core"
+version = "0.3.28"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4bca583b7e26f571124fe5b7561d49cb2868d79116cfa0eefce955557c6fee8c"
+
+[[package]]
+name = "futures-executor"
 version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ccecee823288125bd88b4d7f565c9e58e41858e47ab72e8ea2d64e93624386e0"
@@ -1890,7 +2230,7 @@ checksum = "89ca545a94061b6365f2c7355b4b32bd20df3ff95f02da9329b34ccc3bd6ee72"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.18",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -1946,6 +2286,7 @@ checksum = "85649ca51fd72272d7821adaf274ad91c288277713d9c18820d8499a7ff69e9a"
 dependencies = [
  "typenum",
  "version_check",
+ "zeroize",
 ]
 
 [[package]]
@@ -1961,38 +2302,42 @@ dependencies = [
 
 [[package]]
 name = "getrandom"
-version = "0.2.9"
+version = "0.2.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c85e1d9ab2eadba7e5040d4e09cbd6d072b76a557ad64e797c2cb9d4da21d7e4"
+checksum = "be4136b2a15dd319360be1c07d9933517ccf0be8f16bf62a3bee4f0d618df427"
 dependencies = [
  "cfg-if",
- "js-sys",
  "libc",
  "wasi 0.11.0+wasi-snapshot-preview1",
- "wasm-bindgen",
 ]
 
 [[package]]
 name = "gimli"
-version = "0.26.2"
+version = "0.27.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "22030e2c5a68ec659fde1e949a745124b48e6fa8b045b7ed5bd1fe4ccc5c4e5d"
+checksum = "b6c80984affa11d98d1b88b66ac8853f143217b399d3c74116778ff8fdb4ed2e"
 dependencies = [
  "fallible-iterator",
+ "indexmap 1.9.3",
  "stable_deref_trait",
 ]
 
 [[package]]
-name = "gimli"
-version = "0.27.2"
+name = "group"
+version = "0.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ad0a93d233ebf96623465aad4046a8d3aa4da22d4f4beba5388838c8a434bbb4"
+checksum = "f0f9ef7462f7c099f518d754361858f86d8a07af53ba9af0fe635bbccb151a63"
+dependencies = [
+ "ff",
+ "rand_core 0.6.4",
+ "subtle",
+]
 
 [[package]]
 name = "h2"
-version = "0.3.19"
+version = "0.3.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d357c7ae988e7d2182f7d7871d0b963962420b0678b0997ce7de72001aeab782"
+checksum = "97ec8491ebaf99c8eaa73058b045fe58073cd6be7f596ac993ced0b0a0c01049"
 dependencies = [
  "bytes",
  "fnv",
@@ -2000,7 +2345,7 @@ dependencies = [
  "futures-sink",
  "futures-util",
  "http",
- "indexmap",
+ "indexmap 1.9.3",
  "slab",
  "tokio",
  "tokio-util",
@@ -2040,13 +2385,23 @@ dependencies = [
  "ahash 0.8.3",
 ]
 
+[[package]]
+name = "hashbrown"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2c6201b9ff9fd90a5a3bac2e56a830d0caa509576f0e503818ee82c181b3437a"
+dependencies = [
+ "ahash 0.8.3",
+ "allocator-api2",
+]
+
 [[package]]
 name = "hashlink"
-version = "0.8.2"
+version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0761a1b9491c4f2e3d66aa0f62d0fba0af9a0e2852e4d48ea506632a4b56e6aa"
+checksum = "312f66718a2d7789ffef4f4b7b213138ed9f1eb3aa1d0d82fc99f88fb3ffd26f"
 dependencies = [
- "hashbrown 0.13.2",
+ "hashbrown 0.14.0",
 ]
 
 [[package]]
@@ -2056,7 +2411,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f3e372db8e5c0d213e0cd0b9be18be2aca3d44cf2fe30a9d46a65581cd454584"
 dependencies = [
  "base64 0.13.1",
- "bitflags",
+ "bitflags 1.3.2",
  "bytes",
  "headers-core",
  "http",
@@ -2094,18 +2449,9 @@ dependencies = [
 
 [[package]]
 name = "hermit-abi"
-version = "0.2.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ee512640fe35acbfb4bb779db6f0d80704c2cacfa2e39b601ef3e3f47d1ae4c7"
-dependencies = [
- "libc",
-]
-
-[[package]]
-name = "hermit-abi"
-version = "0.3.1"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fed44880c466736ef9a5c5b5facefb5ed0785676d0c02d612db14e54f0d84286"
+checksum = "443144c8cdadd93ebf52ddb4056d257f5b52c04d3c804e657d19eb73fc33668b"
 
 [[package]]
 name = "hex"
@@ -2198,9 +2544,9 @@ dependencies = [
 
 [[package]]
 name = "http-range-header"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0bfe8eed0a9285ef776bb792479ea3834e8b94e13d615c2f66d03dd50a435a29"
+checksum = "add0ab9360ddbd88cfeb3bd9574a1d85cfdfa14db10b3e21d3700dbc4328758f"
 
 [[package]]
 name = "httparse"
@@ -2216,9 +2562,9 @@ checksum = "c4a1e36c821dbe04574f602848a19f742f4fb3c98d40449f11bcad18d6b17421"
 
 [[package]]
 name = "hyper"
-version = "0.14.26"
+version = "0.14.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ab302d72a6f11a3b910431ff93aae7e773078c769f0a3ef15fb9ec692ed147d4"
+checksum = "ffb1cfd654a8219eaef89881fdb3bb3b1cdc5fa75ded05d6933b2b382e395468"
 dependencies = [
  "bytes",
  "futures-channel",
@@ -2251,20 +2597,20 @@ dependencies = [
  "rustls-native-certs",
  "tokio",
  "tokio-rustls 0.23.4",
- "webpki-roots",
 ]
 
 [[package]]
 name = "hyper-rustls"
-version = "0.24.0"
+version = "0.24.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0646026eb1b3eea4cd9ba47912ea5ce9cc07713d105b1a14698f4e6433d348b7"
+checksum = "8d78e1e73ec14cf7375674f74d7dde185c8206fd9dea6fb6295e8a98098aaa97"
 dependencies = [
+ "futures-util",
  "http",
  "hyper",
- "rustls 0.21.1",
+ "rustls 0.21.5",
  "tokio",
- "tokio-rustls 0.24.0",
+ "tokio-rustls 0.24.1",
 ]
 
 [[package]]
@@ -2282,9 +2628,9 @@ dependencies = [
 
 [[package]]
 name = "iana-time-zone"
-version = "0.1.56"
+version = "0.1.57"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0722cd7114b7de04316e7ea5456a0bbb20e4adb46fd27a3697adb812cff0f37c"
+checksum = "2fad5b825842d2b38bd206f3e81d6957625fd7f0a361e345c30e01a0ae2dd613"
 dependencies = [
  "android_system_properties",
  "core-foundation-sys",
@@ -2311,20 +2657,9 @@ checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
 
 [[package]]
 name = "idna"
-version = "0.2.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "418a0a6fab821475f634efe3ccc45c013f742efe03d853e8d3355d5cb850ecf8"
-dependencies = [
- "matches",
- "unicode-bidi",
- "unicode-normalization",
-]
-
-[[package]]
-name = "idna"
-version = "0.3.0"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e14ddfc70884202db2244c223200c204c2bda1bc6e0998d11b5e024d657209e6"
+checksum = "7d20d6b07bfbc108882d88ed8e37d39636dcc260e15e30c45e6ba089610b917c"
 dependencies = [
  "unicode-bidi",
  "unicode-normalization",
@@ -2376,23 +2711,40 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "indexmap"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d5477fe2230a79769d8dc68e0eabf5437907c0457a5614a9e8dddb67f65eb65d"
+dependencies = [
+ "equivalent",
+ "hashbrown 0.14.0",
+]
+
+[[package]]
+name = "indexmap-nostd"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e04e2fd2b8188ea827b32ef11de88377086d690286ab35747ef7f9bf3ccb590"
+
 [[package]]
 name = "indicatif"
-version = "0.17.3"
+version = "0.17.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cef509aa9bc73864d6756f0d34d35504af3cf0844373afe9b8669a5b8005a729"
+checksum = "8ff8cc23a7393a397ed1d7f56e6365cba772aba9f9912ab968b03043c395d057"
 dependencies = [
  "console",
+ "instant",
  "number_prefix",
- "portable-atomic 0.3.20",
+ "portable-atomic",
  "unicode-width",
 ]
 
 [[package]]
 name = "ink_metadata"
-version = "4.2.0"
+version = "4.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4af082b4c2eb246d27b358411ef950811f851c1099aa507ba4bcdd7214d40ccd"
+checksum = "d5fb2b5ad83f725a6d0c8886ca737964d0013a193ca2d21c7e514fd427672416"
 dependencies = [
  "derive_more",
  "impl-serde",
@@ -2404,18 +2756,18 @@ dependencies = [
 
 [[package]]
 name = "ink_prelude"
-version = "4.2.0"
+version = "4.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6d0662ba1d4aa26f0fea36ce6ef9ef1e510e24c900597d703b148c8c23b675b9"
+checksum = "6a6f174d742ff929abe66716ad8159f324441b4ff5161a3b0e282f416afbbac1"
 dependencies = [
  "cfg-if",
 ]
 
 [[package]]
 name = "ink_primitives"
-version = "4.2.0"
+version = "4.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "52693c5e74600f5bd4c0f6d447ba9c4e491e4edf685eaf9f9f347a3cb1cde66b"
+checksum = "14b4e4772e1b9384233103c1f488df9854d24b3c16168bcf23613b7d98fb363f"
 dependencies = [
  "derive_more",
  "ink_prelude",
@@ -2456,16 +2808,16 @@ version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "eae7b9aee968036d54dce06cebaefd919e4472e753296daccd6d344e3e2df0c2"
 dependencies = [
- "hermit-abi 0.3.1",
+ "hermit-abi",
  "libc",
  "windows-sys 0.48.0",
 ]
 
 [[package]]
 name = "ipnet"
-version = "2.7.2"
+version = "2.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "12b6ee2129af8d4fb011108c73d99a1b83a85977f23b82460c0ae2e25bb4b57f"
+checksum = "28b29a3cd74f0f4598934efe3aeba42bae0eb4680554128851ebbecb02af14e6"
 
 [[package]]
 name = "is-docker"
@@ -2478,13 +2830,12 @@ dependencies = [
 
 [[package]]
 name = "is-terminal"
-version = "0.4.7"
+version = "0.4.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "adcf93614601c8129ddf72e2d5633df827ba6551541c6d8c59520a371475be1f"
+checksum = "cb0889898416213fab133e1d33a0e5858a48177452750691bde3666d0fdbaf8b"
 dependencies = [
- "hermit-abi 0.3.1",
- "io-lifetimes",
- "rustix 0.37.19",
+ "hermit-abi",
+ "rustix 0.38.4",
  "windows-sys 0.48.0",
 ]
 
@@ -2509,15 +2860,15 @@ dependencies = [
 
 [[package]]
 name = "itoa"
-version = "1.0.6"
+version = "1.0.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "453ad9f582a441959e5f0d088b02ce04cfe8d51a8eaf077f12ac6d3e94164ca6"
+checksum = "af150ab688ff2122fcef229be89cb50dd66af9e01a4ff320cc137eecc9bacc38"
 
 [[package]]
 name = "js-sys"
-version = "0.3.63"
+version = "0.3.64"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2f37a4a5928311ac501dee68b3c7613a1037d0edb30c8e5427bd832d55d1b790"
+checksum = "c5f195fe497f702db0f318b07fdd68edb16955aed830df8363d837542f8f935a"
 dependencies = [
  "wasm-bindgen",
 ]
@@ -2530,7 +2881,6 @@ checksum = "7d291e3a5818a2384645fd9756362e6d89cf0541b0b916fa7702ea4a9833608e"
 dependencies = [
  "jsonrpsee-client-transport",
  "jsonrpsee-core",
- "jsonrpsee-http-client",
  "jsonrpsee-types",
 ]
 
@@ -2568,7 +2918,6 @@ dependencies = [
  "futures-channel",
  "futures-timer",
  "futures-util",
- "hyper",
  "jsonrpsee-types",
  "rustc-hash",
  "serde",
@@ -2579,36 +2928,30 @@ dependencies = [
 ]
 
 [[package]]
-name = "jsonrpsee-http-client"
+name = "jsonrpsee-types"
 version = "0.16.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cc345b0a43c6bc49b947ebeb936e886a419ee3d894421790c969cc56040542ad"
+checksum = "5bd522fe1ce3702fd94812965d7bb7a3364b1c9aba743944c5a00529aae80f8c"
 dependencies = [
- "async-trait",
- "hyper",
- "hyper-rustls 0.23.2",
- "jsonrpsee-core",
- "jsonrpsee-types",
- "rustc-hash",
+ "anyhow",
+ "beef",
  "serde",
  "serde_json",
  "thiserror",
- "tokio",
  "tracing",
 ]
 
 [[package]]
-name = "jsonrpsee-types"
-version = "0.16.2"
+name = "k256"
+version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5bd522fe1ce3702fd94812965d7bb7a3364b1c9aba743944c5a00529aae80f8c"
+checksum = "cadb76004ed8e97623117f3df85b17aaa6626ab0b0831e6573f104df16cd1bcc"
 dependencies = [
- "anyhow",
- "beef",
- "serde",
- "serde_json",
- "thiserror",
- "tracing",
+ "cfg-if",
+ "ecdsa",
+ "elliptic-curve",
+ "once_cell",
+ "sha2 0.10.7",
 ]
 
 [[package]]
@@ -2628,9 +2971,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.144"
+version = "0.2.147"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2b00cc1c228a6782d0f076e7b232802e0c5689d41bb5df366f2a6b6621cfdfe1"
+checksum = "b4668fb0ea861c1df094127ac5f1da3409a82116a4ba74fca2e58ef927159bb3"
 
 [[package]]
 name = "libm"
@@ -2697,6 +3040,15 @@ dependencies = [
  "vcpkg",
 ]
 
+[[package]]
+name = "linregress"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4de0b5f52a9f84544d268f5fabb71b38962d6aa3c6600b8bcd27d44ccf9c9c45"
+dependencies = [
+ "nalgebra",
+]
+
 [[package]]
 name = "linux-raw-sys"
 version = "0.1.4"
@@ -2709,11 +3061,17 @@ version = "0.3.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ef53942eb7bf7ff43a617b3e2c1c4a5ecf5944a7c1bc12d7ee39bbb15e5c1519"
 
+[[package]]
+name = "linux-raw-sys"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "57bcfdad1b858c2db7c38303a6d2ad4dfaf5eb53dfeb0910128b2c26d6158503"
+
 [[package]]
 name = "lock_api"
-version = "0.4.9"
+version = "0.4.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "435011366fe56583b16cf956f9df0095b405b82d76425bc8981c0e22e60ec4df"
+checksum = "c1cc9717a20b1bb222f333e6a92fd32f7d8a18ddc5a3191a11af45dcbf4dcd16"
 dependencies = [
  "autocfg",
  "scopeguard",
@@ -2721,9 +3079,18 @@ dependencies = [
 
 [[package]]
 name = "log"
-version = "0.4.18"
+version = "0.4.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "518ef76f2f87365916b142844c16d8fefd85039bc5699050210a7778ee1cd1de"
+checksum = "b06a4cde4c0f271a446782e3eff8de789548ce57dbc8eca9292c27f4a42004b4"
+
+[[package]]
+name = "lru"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eedb2bdbad7e0634f83989bf596f497b070130daaa398ab22d84c39e266deec5"
+dependencies = [
+ "hashbrown 0.14.0",
+]
 
 [[package]]
 name = "mach"
@@ -2740,7 +3107,7 @@ version = "0.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f099785f7595cc4b4553a174ce30dd7589ef93391ff414dbb67f62392b9e0ce1"
 dependencies = [
- "regex-automata",
+ "regex-automata 0.1.10",
 ]
 
 [[package]]
@@ -2749,20 +3116,35 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8263075bb86c5a1b1427b5ae862e8889656f126e9f77c484496e8b47cf5c5558"
 dependencies = [
- "regex-automata",
+ "regex-automata 0.1.10",
 ]
 
 [[package]]
-name = "matches"
-version = "0.1.10"
+name = "matchit"
+version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2532096657941c2fea9c289d370a250971c689d4f143798ff67113ec042024a5"
+checksum = "67827e6ea8ee8a7c4a72227ef4fc08957040acffdb5f122733b24fa12daff41b"
 
 [[package]]
-name = "matchit"
-version = "0.7.0"
+name = "matrixmultiply"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "090126dc04f95dc0d1c1c91f61bdd474b3930ca064c1edc8a849da2c6cbe1e77"
+dependencies = [
+ "autocfg",
+ "rawpointer",
+]
+
+[[package]]
+name = "maybe-async"
+version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b87248edafb776e59e6ee64a79086f65890d3510f2c656c000bf2a7e8a0aea40"
+checksum = "0f1b8c13cb1f814b634a96b2c725449fe7ed464a7b8781de8688be5ffbd3f305"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
+]
 
 [[package]]
 name = "md-5"
@@ -2785,14 +3167,14 @@ version = "0.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ffc89ccdc6e10d6907450f753537ebc5c5d3460d2e4e62ea74bd571db62c0f9e"
 dependencies = [
- "rustix 0.37.19",
+ "rustix 0.37.23",
 ]
 
 [[package]]
 name = "memoffset"
-version = "0.6.5"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5aa361d4faea93603064a027415f07bd8e1d5c88c9fbf68bf56a285428fd79ce"
+checksum = "d61c719bcfbcf5d62b3a09efa6088de8c54bc0bfcd3ea7ae39fcc186108b8de1"
 dependencies = [
  "autocfg",
 ]
@@ -2862,23 +3244,22 @@ checksum = "68354c5c6bd36d73ff3feceb05efa59b6acb7626617f4962be322a825e61f79a"
 
 [[package]]
 name = "miniz_oxide"
-version = "0.6.2"
+version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b275950c28b37e794e8c55d88aeb5e139d0ce23fdbbeda68f8d7174abdf9e8fa"
+checksum = "e7810e0be55b428ada41041c41f32c9f1a42817901b4ccf45fa3d4b6561e74c7"
 dependencies = [
  "adler",
 ]
 
 [[package]]
 name = "mio"
-version = "0.8.6"
+version = "0.8.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5b9d9a46eff5b4ff64b45a9e316a6d1e0bc719ef429cbec4dc630684212bfdf9"
+checksum = "927a765cd3fc26206e66b296465fa9d3e5ab003e651c1b3c060e7956d96b19d2"
 dependencies = [
  "libc",
- "log",
  "wasi 0.11.0+wasi-snapshot-preview1",
- "windows-sys 0.45.0",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -2899,6 +3280,33 @@ dependencies = [
  "version_check",
 ]
 
+[[package]]
+name = "nalgebra"
+version = "0.32.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "307ed9b18cc2423f29e83f84fd23a8e73628727990181f18641a8b5dc2ab1caa"
+dependencies = [
+ "approx",
+ "matrixmultiply",
+ "nalgebra-macros",
+ "num-complex",
+ "num-rational",
+ "num-traits",
+ "simba",
+ "typenum",
+]
+
+[[package]]
+name = "nalgebra-macros"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "91761aed67d03ad966ef783ae962ef9bbaca728d2dd7ceb7939ec110fffad998"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
+]
+
 [[package]]
 name = "native-tls"
 version = "0.2.11"
@@ -2954,13 +3362,22 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "num-complex"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "02e0d21255c828d6f128a1e41534206671e8c3ea0c62f32291e808dc82cff17d"
+dependencies = [
+ "num-traits",
+]
+
 [[package]]
 name = "num-format"
 version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a652d9771a63711fd3c3deb670acfbe5c30a4072e664d7a3bf5a9e1056ac72c3"
 dependencies = [
- "arrayvec 0.7.2",
+ "arrayvec 0.7.4",
  "itoa",
 ]
 
@@ -2988,20 +3405,20 @@ dependencies = [
 
 [[package]]
 name = "num-traits"
-version = "0.2.15"
+version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "578ede34cf02f8924ab9447f50c28075b4d3e5b269972345e7e0372b38c6cdcd"
+checksum = "f30b0abd723be7e2ffca1272140fac1a2f084c77ec3e123c192b66af1ee9e6c2"
 dependencies = [
  "autocfg",
 ]
 
 [[package]]
 name = "num_cpus"
-version = "1.15.0"
+version = "1.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0fac9e2da13b5eb447a6ce3d392f23a29d8694bff781bf03a16cd9ac8697593b"
+checksum = "4161fcb6d602d4d2081af7c3a45852d875a03dd337a6bfdd6e06407b61342a43"
 dependencies = [
- "hermit-abi 0.2.6",
+ "hermit-abi",
  "libc",
 ]
 
@@ -3013,30 +3430,30 @@ checksum = "830b246a0e5f20af87141b25c173cd1b609bd7779a4617d6ec582abaf90870f3"
 
 [[package]]
 name = "object"
-version = "0.29.0"
+version = "0.30.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "21158b2c33aa6d4561f1c0a6ea283ca92bc54802a93b263e910746d679a7eb53"
+checksum = "03b4680b86d9cfafba8fc491dc9b6df26b68cf40e9e6cd73909194759a63c385"
 dependencies = [
  "crc32fast",
- "hashbrown 0.12.3",
- "indexmap",
+ "hashbrown 0.13.2",
+ "indexmap 1.9.3",
  "memchr",
 ]
 
 [[package]]
 name = "object"
-version = "0.30.3"
+version = "0.31.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea86265d3d3dcb6a27fc51bd29a4bf387fae9d2986b823079d4986af253eb439"
+checksum = "8bda667d9f2b5051b8833f59f3bf748b28ef54f850f4fcb389a252aa383866d1"
 dependencies = [
  "memchr",
 ]
 
 [[package]]
 name = "once_cell"
-version = "1.17.1"
+version = "1.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7e5500299e16ebb147ae15a00a942af264cf3688f47923b8fc2cd5858f23ad3"
+checksum = "dd8b5dd2ae5ed71462c540258bedcb51965123ad7e7ccf4b9a8cafaa4a63576d"
 
 [[package]]
 name = "opaque-debug"
@@ -3052,21 +3469,22 @@ checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
 
 [[package]]
 name = "open"
-version = "4.1.0"
+version = "4.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d16814a067484415fda653868c9be0ac5f2abd2ef5d951082a5f2fe1b3662944"
+checksum = "3a083c0c7e5e4a8ec4176346cf61f67ac674e8bfb059d9226e1c54a96b377c12"
 dependencies = [
  "is-wsl",
+ "libc",
  "pathdiff",
 ]
 
 [[package]]
 name = "openssl"
-version = "0.10.52"
+version = "0.10.55"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "01b8574602df80f7b85fdfc5392fa884a4e3b3f4f35402c070ab34c3d3f78d56"
+checksum = "345df152bc43501c5eb9e4654ff05f794effb78d4efe3d53abc158baddc0703d"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "cfg-if",
  "foreign-types",
  "libc",
@@ -3083,7 +3501,7 @@ checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.18",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -3094,9 +3512,9 @@ checksum = "ff011a302c396a5197692431fc1948019154afc178baf7d8e37367442a4601cf"
 
 [[package]]
 name = "openssl-sys"
-version = "0.9.87"
+version = "0.9.90"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e17f59264b2809d77ae94f0e1ebabc434773f370d6ca667bd223ea10e06cc7e"
+checksum = "374533b0e45f3a7ced10fcaeccca020e66656bc03dac384f852e4e5a7a8104a6"
 dependencies = [
  "cc",
  "libc",
@@ -3106,9 +3524,9 @@ dependencies = [
 
 [[package]]
 name = "os_str_bytes"
-version = "6.5.0"
+version = "6.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ceedf44fb00f2d1984b0bc98102627ce622e083e49a5bacdb3e514fa4238e267"
+checksum = "4d5d9eb14b174ee9aa2ef96dc2b94637a2d4b6e7cb873c7e171f0c20c6cf3eac"
 
 [[package]]
 name = "ouroboros"
@@ -3145,13 +3563,71 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b15813163c1d831bf4a13c3610c05c0d03b39feb07f7e09fa234dac9b15aaf39"
 
+[[package]]
+name = "pallet-assets"
+version = "4.0.0-dev"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
+dependencies = [
+ "frame-benchmarking",
+ "frame-support",
+ "frame-system",
+ "parity-scale-codec",
+ "scale-info",
+ "sp-core",
+ "sp-runtime",
+ "sp-std",
+]
+
+[[package]]
+name = "pallet-balances"
+version = "4.0.0-dev"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
+dependencies = [
+ "frame-benchmarking",
+ "frame-support",
+ "frame-system",
+ "log",
+ "parity-scale-codec",
+ "scale-info",
+ "sp-runtime",
+ "sp-std",
+]
+
+[[package]]
+name = "pallet-contracts"
+version = "4.0.0-dev"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
+dependencies = [
+ "bitflags 1.3.2",
+ "environmental",
+ "frame-benchmarking",
+ "frame-support",
+ "frame-system",
+ "impl-trait-for-tuples",
+ "log",
+ "pallet-contracts-primitives",
+ "pallet-contracts-proc-macro",
+ "parity-scale-codec",
+ "rand 0.8.5",
+ "scale-info",
+ "serde",
+ "smallvec",
+ "sp-api",
+ "sp-core",
+ "sp-io",
+ "sp-runtime",
+ "sp-std",
+ "wasm-instrument",
+ "wasmi 0.28.0",
+ "wasmparser-nostd",
+]
+
 [[package]]
 name = "pallet-contracts-primitives"
-version = "23.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f5a4b2ba3fa3f9e9480e6fceeb1a2efc95832f1240355ddaac0e90f861f9595f"
+version = "7.0.0"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "parity-scale-codec",
  "scale-info",
  "sp-runtime",
@@ -3159,13 +3635,23 @@ dependencies = [
  "sp-weights",
 ]
 
+[[package]]
+name = "pallet-contracts-proc-macro"
+version = "4.0.0-dev"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.28",
+]
+
 [[package]]
 name = "parity-scale-codec"
-version = "3.5.0"
+version = "3.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5ddb756ca205bd108aee3c62c6d3c994e1df84a59b9d6d4a5ea42ee1fd5a9a28"
+checksum = "dd8e946cc0cc711189c0b0249fb8b599cbeeab9784d83c415719368bb8d4ac64"
 dependencies = [
- "arrayvec 0.7.2",
+ "arrayvec 0.7.4",
  "bitvec",
  "byte-slice-cast",
  "bytes",
@@ -3176,9 +3662,9 @@ dependencies = [
 
 [[package]]
 name = "parity-scale-codec-derive"
-version = "3.1.4"
+version = "3.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "86b26a931f824dd4eca30b3e43bb4f31cd5f0d3a403c5f5ff27106b805bfde7b"
+checksum = "2a296c3079b5fefbc499e1de58dc26c09b1b9a5952d26694ee89f04a43ebbb3e"
 dependencies = [
  "proc-macro-crate 1.3.1",
  "proc-macro2",
@@ -3210,7 +3696,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3742b2c103b9f06bc9fff0a37ff4912935851bee6d36f3c02bcc755bcfec228f"
 dependencies = [
  "lock_api",
- "parking_lot_core 0.9.7",
+ "parking_lot_core 0.9.8",
 ]
 
 [[package]]
@@ -3229,22 +3715,22 @@ dependencies = [
 
 [[package]]
 name = "parking_lot_core"
-version = "0.9.7"
+version = "0.9.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9069cbb9f99e3a5083476ccb29ceb1de18b9118cafa53e90c9551235de2b9521"
+checksum = "93f00c865fe7cabf650081affecd3871070f26767e7b2070a3ffae14c654b447"
 dependencies = [
  "cfg-if",
  "libc",
- "redox_syscall 0.2.16",
+ "redox_syscall 0.3.5",
  "smallvec",
- "windows-sys 0.45.0",
+ "windows-targets 0.48.1",
 ]
 
 [[package]]
 name = "paste"
-version = "1.0.12"
+version = "1.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9f746c4065a8fa3fe23974dd82f15431cc8d40779821001404d10d2e79ca7d79"
+checksum = "de3145af08024dea9fa9914f381a17b8fc6034dfb00f3a84013f7ff43f29ed4c"
 
 [[package]]
 name = "pathdiff"
@@ -3257,7 +3743,7 @@ name = "patron"
 version = "0.1.0"
 dependencies = [
  "anyhow",
- "clap 4.3.0",
+ "clap 4.3.19",
  "common",
  "derive_more",
  "figment",
@@ -3269,8 +3755,9 @@ dependencies = [
  "rand 0.8.5",
  "reqwest",
  "serde",
+ "serde_json",
  "tempfile",
- "toml 0.7.4",
+ "toml 0.7.6",
  "walkdir",
  "which",
  "zip",
@@ -3296,9 +3783,9 @@ dependencies = [
 
 [[package]]
 name = "pear"
-version = "0.2.4"
+version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ec95680a7087503575284e5063e14b694b7a9c0b065e5dceec661e0497127e8"
+checksum = "61a386cd715229d399604b50d1361683fe687066f42d56f54be995bc6868f71c"
 dependencies = [
  "inlinable_string",
  "pear_codegen",
@@ -3307,47 +3794,47 @@ dependencies = [
 
 [[package]]
 name = "pear_codegen"
-version = "0.2.4"
+version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9661a3a53f93f09f2ea882018e4d7c88f6ff2956d809a276060476fd8c879d3c"
+checksum = "da9f0f13dac8069c139e8300a6510e3f4143ecf5259c60b116a9b271b4ca0d54"
 dependencies = [
  "proc-macro2",
  "proc-macro2-diagnostics",
  "quote",
- "syn 2.0.18",
+ "syn 2.0.28",
 ]
 
 [[package]]
 name = "percent-encoding"
-version = "2.2.0"
+version = "2.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "478c572c3d73181ff3c2539045f6eb99e5491218eae919370993b890cdbdd98e"
+checksum = "9b2a4787296e9989611394c33f193f676704af1686e70b8f8033ab5ba9a35a94"
 
 [[package]]
 name = "pin-project"
-version = "1.1.0"
+version = "1.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c95a7476719eab1e366eaf73d0260af3021184f18177925b07f54b30089ceead"
+checksum = "030ad2bc4db10a8944cb0d837f158bdfec4d4a4873ab701a95046770d11f8842"
 dependencies = [
  "pin-project-internal",
 ]
 
 [[package]]
 name = "pin-project-internal"
-version = "1.1.0"
+version = "1.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "39407670928234ebc5e6e580247dd567ad73a3578460c5990f9503df207e8f07"
+checksum = "ec2e072ecce94ec471b13398d5402c188e76ac03cf74dd1a975161b23a3f6d9c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.18",
+ "syn 2.0.28",
 ]
 
 [[package]]
 name = "pin-project-lite"
-version = "0.2.9"
+version = "0.2.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e0a7ae3ac2f1173085d398531c705756c94a4c56843785df85a60c1a0afac116"
+checksum = "4c40d25201921e5ff0c862a505c6557ea88568a4e3ace775ab55e93f2f4f9d57"
 
 [[package]]
 name = "pin-utils"
@@ -3356,25 +3843,26 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
 [[package]]
-name = "pkg-config"
-version = "0.3.27"
+name = "pkcs8"
+version = "0.10.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "26072860ba924cbfa98ea39c8c19b4dd6a4a25423dbdf219c1eca91aa0cf6964"
+checksum = "f950b2377845cebe5cf8b5165cb3cc1a5e0fa5cfa3e1f7f55707d8fd82e0a7b7"
+dependencies = [
+ "der",
+ "spki",
+]
 
 [[package]]
-name = "portable-atomic"
-version = "0.3.20"
+name = "pkg-config"
+version = "0.3.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e30165d31df606f5726b090ec7592c308a0eaf61721ff64c9a3018e344a8753e"
-dependencies = [
- "portable-atomic 1.3.2",
-]
+checksum = "26072860ba924cbfa98ea39c8c19b4dd6a4a25423dbdf219c1eca91aa0cf6964"
 
 [[package]]
 name = "portable-atomic"
-version = "1.3.2"
+version = "1.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc59d1bcc64fc5d021d67521f818db868368028108d37f0e98d74e33f68297b5"
+checksum = "f32154ba0af3a075eefa1eda8bb414ee928f62303a54ea85b8d6638ff1a6ee9e"
 
 [[package]]
 name = "ppv-lite86"
@@ -3438,24 +3926,35 @@ dependencies = [
  "version_check",
 ]
 
+[[package]]
+name = "proc-macro-warning"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0e99670bafb56b9a106419397343bdbc8b8742c3cc449fec6345f86173f47cd4"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.28",
+]
+
 [[package]]
 name = "proc-macro2"
-version = "1.0.59"
+version = "1.0.66"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6aeca18b86b413c660b781aa319e4e2648a3e6f9eadc9b47e9038e6fe9f3451b"
+checksum = "18fb31db3f9bddb2ea821cde30a9f70117e3f119938b5ee630b7403aa6e2ead9"
 dependencies = [
  "unicode-ident",
 ]
 
 [[package]]
 name = "proc-macro2-diagnostics"
-version = "0.10.0"
+version = "0.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "606c4ba35817e2922a308af55ad51bab3645b59eae5c570d4a6cf07e36bd493b"
+checksum = "af066a9c399a26e020ada66a034357a868728e72cd426f3adcd35f80d88d88c8"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.18",
+ "syn 2.0.28",
  "version_check",
  "yansi",
 ]
@@ -3491,9 +3990,9 @@ dependencies = [
 
 [[package]]
 name = "quote"
-version = "1.0.28"
+version = "1.0.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1b9ab9c7eadfd8df19006f1cf1a4aed13540ed5cbc047010ece5826e10825488"
+checksum = "50f3b39ccfb720540debaa0164757101c08ecb8d326b15358ce76a62c7e85965"
 dependencies = [
  "proc-macro2",
 ]
@@ -3563,7 +4062,7 @@ version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
 dependencies = [
- "getrandom 0.2.9",
+ "getrandom 0.2.10",
 ]
 
 [[package]]
@@ -3575,6 +4074,12 @@ dependencies = [
  "rand_core 0.5.1",
 ]
 
+[[package]]
+name = "rawpointer"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "60a357793950651c4ed0f3f52338f53b2f809f32d83a07f72909fa13e4c6c1e3"
+
 [[package]]
 name = "readme-rustdocifier"
 version = "0.1.1"
@@ -3587,7 +4092,7 @@ version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fb5a58c1855b4b6819d59012155603f0b22ad30cad752600aadfcb695265519a"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
 ]
 
 [[package]]
@@ -3596,7 +4101,7 @@ version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "567664f262709473930a4bf9e51bf2ebf3348f2e748ccc50dea20646858f8f29"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
 ]
 
 [[package]]
@@ -3605,40 +4110,41 @@ version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b033d837a7cf162d7993aded9304e30a83213c648b6e389db233191f891e5c2b"
 dependencies = [
- "getrandom 0.2.9",
+ "getrandom 0.2.10",
  "redox_syscall 0.2.16",
  "thiserror",
 ]
 
 [[package]]
 name = "ref-cast"
-version = "1.0.16"
+version = "1.0.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f43faa91b1c8b36841ee70e97188a869d37ae21759da6846d4be66de5bf7b12c"
+checksum = "61ef7e18e8841942ddb1cf845054f8008410030a3997875d9e49b7a363063df1"
 dependencies = [
  "ref-cast-impl",
 ]
 
 [[package]]
 name = "ref-cast-impl"
-version = "1.0.16"
+version = "1.0.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8d2275aab483050ab2a7364c1a46604865ee7d6906684e08db0f090acf74f9e7"
+checksum = "2dfaf0c85b766276c797f3791f5bc6d5bd116b41d53049af2789666b0c0bc9fa"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.18",
+ "syn 2.0.28",
 ]
 
 [[package]]
 name = "regex"
-version = "1.8.3"
+version = "1.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "81ca098a9821bd52d6b24fd8b10bd081f47d39c22778cafaa75a2857a62c6390"
+checksum = "b2eae68fc220f7cf2532e4494aded17545fce192d59cd996e0fe7887f4ceb575"
 dependencies = [
  "aho-corasick",
  "memchr",
- "regex-syntax 0.7.2",
+ "regex-automata 0.3.4",
+ "regex-syntax 0.7.4",
 ]
 
 [[package]]
@@ -3650,6 +4156,17 @@ dependencies = [
  "regex-syntax 0.6.29",
 ]
 
+[[package]]
+name = "regex-automata"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b7b6d6190b7594385f61bd3911cd1be99dfddcfc365a4160cc2ab5bff4aed294"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-syntax 0.7.4",
+]
+
 [[package]]
 name = "regex-syntax"
 version = "0.6.29"
@@ -3658,9 +4175,9 @@ checksum = "f162c6dd7b008981e4d40210aca20b4bd0f9b60ca9271061b07f78537722f2e1"
 
 [[package]]
 name = "regex-syntax"
-version = "0.7.2"
+version = "0.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "436b050e76ed2903236f032a59761c1eb99e1b0aead2c257922771dab1fc8c78"
+checksum = "e5ea92a5b6195c6ef2a0295ea818b312502c6fc94dde986c5553242e18fd4ce2"
 
 [[package]]
 name = "rend"
@@ -3686,7 +4203,7 @@ dependencies = [
  "http",
  "http-body",
  "hyper",
- "hyper-rustls 0.24.0",
+ "hyper-rustls 0.24.1",
  "ipnet",
  "js-sys",
  "log",
@@ -3695,13 +4212,13 @@ dependencies = [
  "once_cell",
  "percent-encoding",
  "pin-project-lite",
- "rustls 0.21.1",
+ "rustls 0.21.5",
  "rustls-pemfile",
  "serde",
  "serde_json",
  "serde_urlencoded",
  "tokio",
- "tokio-rustls 0.24.0",
+ "tokio-rustls 0.24.1",
  "tower-service",
  "url",
  "wasm-bindgen",
@@ -3711,6 +4228,16 @@ dependencies = [
  "winreg",
 ]
 
+[[package]]
+name = "rfc6979"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f8dd2a808d456c4a54e300a23e9f5a67e122c3024119acbfd73e3bf664491cb2"
+dependencies = [
+ "hmac 0.12.1",
+ "subtle",
+]
+
 [[package]]
 name = "ring"
 version = "0.16.20"
@@ -3756,13 +4283,12 @@ dependencies = [
 
 [[package]]
 name = "rust_decimal"
-version = "1.29.1"
+version = "1.31.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "26bd36b60561ee1fb5ec2817f198b6fd09fa571c897a5e86d1487cfc2b096dfc"
+checksum = "4a2ab0025103a60ecaaf3abf24db1db240a4e1c15837090d2c32f625ac98abea"
 dependencies = [
- "arrayvec 0.7.2",
+ "arrayvec 0.7.4",
  "borsh",
- "bytecheck",
  "byteorder",
  "bytes",
  "num-traits",
@@ -3801,11 +4327,11 @@ dependencies = [
 
 [[package]]
 name = "rustix"
-version = "0.36.14"
+version = "0.36.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "14e4d67015953998ad0eb82887a0eb0129e18a7e2f3b7b0f6c422fddcd503d62"
+checksum = "c37f1bd5ef1b5422177b7646cba67430579cfe2ace80f284fee876bca52ad941"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "errno",
  "io-lifetimes",
  "libc",
@@ -3815,11 +4341,11 @@ dependencies = [
 
 [[package]]
 name = "rustix"
-version = "0.37.19"
+version = "0.37.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "acf8729d8542766f1b2cf77eb034d52f40d375bb8b615d0b147089946e16613d"
+checksum = "4d69718bf81c6127a49dc64e44a742e8bb9213c0ff8869a22c308f84c1d4ab06"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "errno",
  "io-lifetimes",
  "libc",
@@ -3827,6 +4353,19 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "rustix"
+version = "0.38.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0a962918ea88d644592894bc6dc55acc6c0956488adcebbfb6e273506b7fd6e5"
+dependencies = [
+ "bitflags 2.3.3",
+ "errno",
+ "libc",
+ "linux-raw-sys 0.4.5",
+ "windows-sys 0.48.0",
+]
+
 [[package]]
 name = "rustls"
 version = "0.20.8"
@@ -3841,9 +4380,9 @@ dependencies = [
 
 [[package]]
 name = "rustls"
-version = "0.21.1"
+version = "0.21.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c911ba11bc8433e811ce56fde130ccf32f5127cab0e0194e9c68c5a5b671791e"
+checksum = "79ea77c539259495ce8ca47f53e66ae0330a8819f67e23ac96ca02f50e7b7d36"
 dependencies = [
  "log",
  "ring",
@@ -3853,9 +4392,9 @@ dependencies = [
 
 [[package]]
 name = "rustls-native-certs"
-version = "0.6.2"
+version = "0.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0167bac7a9f490495f3c33013e7722b53cb087ecbe082fb0c6387c96f634ea50"
+checksum = "a9aace74cb666635c918e9c12bc0d348266037aa8eb599b5cba565709a8dff00"
 dependencies = [
  "openssl-probe",
  "rustls-pemfile",
@@ -3865,18 +4404,18 @@ dependencies = [
 
 [[package]]
 name = "rustls-pemfile"
-version = "1.0.2"
+version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d194b56d58803a43635bdc398cd17e383d6f71f9182b9a192c127ca42494a59b"
+checksum = "2d3987094b1d07b653b7dfdc3f70ce9a1da9c51ac18c1b06b662e4f9a0e9f4b2"
 dependencies = [
  "base64 0.21.2",
 ]
 
 [[package]]
 name = "rustls-webpki"
-version = "0.100.1"
+version = "0.101.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d6207cd5ed3d8dca7816f8f3725513a34609c0c765bf652b8c3cb4cfd87db46b"
+checksum = "513722fd73ad80a71f72b61009ea1b584bcfa1483ca93949c8f290298837fa59"
 dependencies = [
  "ring",
  "untrusted",
@@ -3884,15 +4423,24 @@ dependencies = [
 
 [[package]]
 name = "rustversion"
-version = "1.0.12"
+version = "1.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4f3208ce4d8448b3f3e7d168a73f5e0c43a61e32930de3bceeccedb388b6bf06"
+checksum = "7ffc183a10b4478d04cbbbfc96d0873219d962dd5accaff2ffbd4ceb7df837f4"
 
 [[package]]
 name = "ryu"
-version = "1.0.13"
+version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f91339c0467de62360649f8d3e185ca8de4224ff281f66000de5eb2a77a79041"
+checksum = "1ad4cc8da4ef723ed60bced201181d83791ad433213d8c24efffda1eec85d741"
+
+[[package]]
+name = "safe_arch"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f398075ce1e6a179b46f51bd88d0598b92b00d3551f1a2d4ac49e771b56ac354"
+dependencies = [
+ "bytemuck",
+]
 
 [[package]]
 name = "same-file"
@@ -3911,7 +4459,6 @@ checksum = "8dd7aca73785181cc41f0bbe017263e682b585ca660540ba569133901d013ecf"
 dependencies = [
  "parity-scale-codec",
  "scale-info",
- "serde",
 ]
 
 [[package]]
@@ -3921,7 +4468,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c7e5527e4b3bf079d4c0b2f253418598c380722ba37ef20fac9088081407f2b6"
 dependencies = [
  "parity-scale-codec",
- "primitive-types",
  "scale-bits",
  "scale-decode-derive",
  "scale-info",
@@ -3948,8 +4494,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "15546e5efbb45f0fc2291f7e202dee8623274c5d8bbfdf9c6886cc8b44a7ced3"
 dependencies = [
  "parity-scale-codec",
- "primitive-types",
- "scale-bits",
  "scale-encode-derive",
  "scale-info",
  "thiserror",
@@ -3970,9 +4514,9 @@ dependencies = [
 
 [[package]]
 name = "scale-info"
-version = "2.7.0"
+version = "2.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b569c32c806ec3abdf3b5869fb8bf1e0d275a7c1c9b0b05603d9464632649edf"
+checksum = "35c0a159d0c45c12b20c5a844feb1fe4bea86e28f17b92a5f0c42193634d3782"
 dependencies = [
  "bitvec",
  "cfg-if",
@@ -3984,9 +4528,9 @@ dependencies = [
 
 [[package]]
 name = "scale-info-derive"
-version = "2.6.0"
+version = "2.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "53012eae69e5aa5c14671942a5dd47de59d4cdcff8532a6dd0e081faf1119482"
+checksum = "912e55f6d20e0e80d63733872b40e1227c0bce1e1ab81ba67d696339bfd7fd29"
 dependencies = [
  "proc-macro-crate 1.3.1",
  "proc-macro2",
@@ -3994,31 +4538,13 @@ dependencies = [
  "syn 1.0.109",
 ]
 
-[[package]]
-name = "scale-value"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "11f549769261561e6764218f847e500588f9a79a289de49ce92f9e26642a3574"
-dependencies = [
- "either",
- "frame-metadata",
- "parity-scale-codec",
- "scale-bits",
- "scale-decode",
- "scale-encode",
- "scale-info",
- "serde",
- "thiserror",
- "yap",
-]
-
 [[package]]
 name = "schannel"
-version = "0.1.21"
+version = "0.1.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "713cfb06c7059f3588fb8044c0fad1d09e3c01d225e25b9220dbfdcf16dbb1b3"
+checksum = "0c3733bf4cf7ea0880754e19cb5a462007c4a8c1914bff372ccc95b464f1df88"
 dependencies = [
- "windows-sys 0.42.0",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -4028,7 +4554,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "02c613288622e5f0c3fdc5dbd4db1c5fbe752746b1d1a56a0630b78fd00de44f"
 dependencies = [
  "dyn-clone",
- "indexmap",
+ "indexmap 1.9.3",
  "schemars_derive",
  "serde",
  "serde_json",
@@ -4077,9 +4603,9 @@ dependencies = [
 
 [[package]]
 name = "scopeguard"
-version = "1.1.0"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
+checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
 
 [[package]]
 name = "sct"
@@ -4260,6 +4786,20 @@ version = "4.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1c107b6f4780854c8b126e228ea8869f4d7b71260f962fefb57b996b8959ba6b"
 
+[[package]]
+name = "sec1"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d3e97a565f76233a6003f9f5c54be1d9c5bdfa3eccfb189469f11ec4901c47dc"
+dependencies = [
+ "base16ct",
+ "der",
+ "generic-array 0.14.7",
+ "pkcs8",
+ "subtle",
+ "zeroize",
+]
+
 [[package]]
 name = "secp256k1"
 version = "0.24.3"
@@ -4289,11 +4829,11 @@ dependencies = [
 
 [[package]]
 name = "security-framework"
-version = "2.9.1"
+version = "2.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1fc758eb7bffce5b308734e9b0c1468893cae9ff70ebf13e7090be8dcbcc83a8"
+checksum = "05b64fb303737d99b81884b2c63433e9ae28abebe5eb5045dcdd175dc2ecf4de"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "core-foundation",
  "core-foundation-sys",
  "libc",
@@ -4302,9 +4842,9 @@ dependencies = [
 
 [[package]]
 name = "security-framework-sys"
-version = "2.9.0"
+version = "2.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f51d0c0d83bec45f16480d0ce0058397a69e48fcdc52d1dc8855fb68acbd31a7"
+checksum = "e932934257d3b408ed8f30db49d85ea163bfe74961f017f405b025af298f0c7a"
 dependencies = [
  "core-foundation-sys",
  "libc",
@@ -4312,28 +4852,28 @@ dependencies = [
 
 [[package]]
 name = "semver"
-version = "1.0.17"
+version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bebd363326d05ec3e2f532ab7660680f3b02130d780c299bca73469d521bc0ed"
+checksum = "b0293b4b29daaf487284529cc2f5675b8e57c61f70167ba415a463651fd6a918"
 
 [[package]]
 name = "serde"
-version = "1.0.163"
+version = "1.0.180"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2113ab51b87a539ae008b5c6c02dc020ffa39afd2d83cffcb3f4eb2722cebec2"
+checksum = "0ea67f183f058fe88a4e3ec6e2788e003840893b91bac4559cabedd00863b3ed"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.163"
+version = "1.0.180"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c805777e3930c8883389c602315a24224bcc738b63905ef87cd1420353ea93e"
+checksum = "24e744d7782b686ab3b73267ef05697159cc0e5abbed3f47f9933165e5219036"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.18",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -4349,9 +4889,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.96"
+version = "1.0.104"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "057d394a50403bcac12672b2b18fb387ab6d289d957dab67dd201875391e52f1"
+checksum = "076066c5f1078eac5b722a31827a8832fe108bed65dfa75e233c89f8206e976c"
 dependencies = [
  "itoa",
  "ryu",
@@ -4360,10 +4900,11 @@ dependencies = [
 
 [[package]]
 name = "serde_path_to_error"
-version = "0.1.11"
+version = "0.1.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f7f05c1d5476066defcdfacce1f52fc3cae3af1d3089727100c02ae92e5abbe0"
+checksum = "4beec8bce849d58d06238cb50db2e1c417cfeafa4c63f692b15c82b7c80f8335"
 dependencies = [
+ "itoa",
  "serde",
 ]
 
@@ -4391,20 +4932,20 @@ dependencies = [
 
 [[package]]
 name = "serde_repr"
-version = "0.1.12"
+version = "0.1.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bcec881020c684085e55a25f7fd888954d56609ef363479dc5a1305eb0d40cab"
+checksum = "8725e1dfadb3a50f7e5ce0b1a540466f6ed3fe7a0fca2ac2b8b831d31316bd00"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.18",
+ "syn 2.0.28",
 ]
 
 [[package]]
 name = "serde_spanned"
-version = "0.6.2"
+version = "0.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "93107647184f6027e3b7dcb2e11034cf95ffa1e3a682c67951963ac69c1c007d"
+checksum = "96426c9936fd7a0124915f9185ea1d20aa9445cc9821142f0a73bc9207a2e186"
 dependencies = [
  "serde",
 ]
@@ -4430,7 +4971,7 @@ dependencies = [
  "base64 0.13.1",
  "chrono",
  "hex",
- "indexmap",
+ "indexmap 1.9.3",
  "serde",
  "serde_json",
  "time",
@@ -4462,7 +5003,6 @@ dependencies = [
  "serde",
  "serde_json",
  "serde_plain",
- "sp-core",
  "tokio",
  "tower",
  "tracing",
@@ -4520,9 +5060,9 @@ dependencies = [
 
 [[package]]
 name = "sha2"
-version = "0.10.6"
+version = "0.10.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "82e6b795fe2e3b1e845bafcb27aa35405c4d47cdfc92af5fc8d3002f76cebdc0"
+checksum = "479fb9d862239e610720565ca91403019f2f00410f1864c5aa7479b950a76ed8"
 dependencies = [
  "cfg-if",
  "cpufeatures",
@@ -4563,6 +5103,29 @@ version = "1.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "74233d3b3b2f6d4b006dc19dee745e73e2a6bfb6f93607cd3b02bd5b00797d7c"
 
+[[package]]
+name = "signature"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5e1788eed21689f9cf370582dfc467ef36ed9c707f073528ddafa8d83e3b8500"
+dependencies = [
+ "digest 0.10.7",
+ "rand_core 0.6.4",
+]
+
+[[package]]
+name = "simba"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "061507c94fc6ab4ba1c9a0305018408e312e17c041eb63bef8aa726fa33aceae"
+dependencies = [
+ "approx",
+ "num-complex",
+ "num-traits",
+ "paste",
+ "wide",
+]
+
 [[package]]
 name = "simdutf8"
 version = "0.1.4"
@@ -4580,9 +5143,9 @@ dependencies = [
 
 [[package]]
 name = "smallvec"
-version = "1.10.0"
+version = "1.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a507befe795404456341dfab10cef66ead4c041f62b8b11bbb92bffe5d0953e0"
+checksum = "62bb4feee49fdd9f707ef802e22365a35de4b7b299de4763d44bfea899442ff9"
 
 [[package]]
 name = "socket2"
@@ -4609,11 +5172,44 @@ dependencies = [
  "sha-1",
 ]
 
+[[package]]
+name = "sp-api"
+version = "4.0.0-dev"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
+dependencies = [
+ "hash-db",
+ "log",
+ "parity-scale-codec",
+ "scale-info",
+ "sp-api-proc-macro",
+ "sp-core",
+ "sp-metadata-ir",
+ "sp-runtime",
+ "sp-state-machine",
+ "sp-std",
+ "sp-trie",
+ "sp-version",
+ "thiserror",
+]
+
+[[package]]
+name = "sp-api-proc-macro"
+version = "4.0.0-dev"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
+dependencies = [
+ "Inflector",
+ "blake2",
+ "expander",
+ "proc-macro-crate 1.3.1",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.28",
+]
+
 [[package]]
 name = "sp-application-crypto"
-version = "22.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8cf23435a4bbd6eeec2bbbc346719ba4f3200e0ddb5f9e9f06c1724db03a8410"
+version = "7.0.0"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
 dependencies = [
  "parity-scale-codec",
  "scale-info",
@@ -4625,9 +5221,8 @@ dependencies = [
 
 [[package]]
 name = "sp-arithmetic"
-version = "15.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2c3d3507a803e8bc332fa290ed3015a7b51d4436ce2b836744642fc412040456"
+version = "6.0.0"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
 dependencies = [
  "integer-sqrt",
  "num-traits",
@@ -4640,12 +5235,11 @@ dependencies = [
 
 [[package]]
 name = "sp-core"
-version = "20.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7789372146f8ad40d0b40fad0596cb1db5771187a258eabe19b06f00767fcbd6"
+version = "7.0.0"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
 dependencies = [
  "array-bytes",
- "bitflags",
+ "bitflags 1.3.2",
  "blake2",
  "bounded-collections",
  "bs58",
@@ -4661,6 +5255,7 @@ dependencies = [
  "merlin",
  "parity-scale-codec",
  "parking_lot 0.12.1",
+ "paste",
  "primitive-types",
  "rand 0.8.5",
  "regex",
@@ -4684,47 +5279,69 @@ dependencies = [
 
 [[package]]
 name = "sp-core-hashing"
-version = "8.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "27449abdfbe41b473e625bce8113745e81d65777dd1d5a8462cf24137930dad8"
+version = "5.0.0"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
 dependencies = [
  "blake2b_simd",
  "byteorder",
  "digest 0.10.7",
- "sha2 0.10.6",
+ "sha2 0.10.7",
  "sha3",
  "sp-std",
  "twox-hash",
 ]
 
+[[package]]
+name = "sp-core-hashing-proc-macro"
+version = "5.0.0"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "sp-core-hashing",
+ "syn 2.0.28",
+]
+
 [[package]]
 name = "sp-debug-derive"
-version = "7.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "62211eed9ef9dac4b9d837c56ccc9f8ee4fc49d9d9b7e6b9daf098fe173389ab"
+version = "5.0.0"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 1.0.109",
+ "syn 2.0.28",
+]
+
+[[package]]
+name = "sp-externalities"
+version = "0.13.0"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
+dependencies = [
+ "environmental",
+ "parity-scale-codec",
+ "sp-std",
+ "sp-storage",
 ]
 
 [[package]]
-name = "sp-externalities"
-version = "0.18.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8ae0f275760689aaefe967943331d458cd99f5169d18364365d4cb584b246d1c"
+name = "sp-inherents"
+version = "4.0.0-dev"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
 dependencies = [
- "environmental",
+ "async-trait",
+ "impl-trait-for-tuples",
  "parity-scale-codec",
+ "scale-info",
+ "sp-core",
+ "sp-runtime",
  "sp-std",
- "sp-storage",
+ "thiserror",
 ]
 
 [[package]]
 name = "sp-io"
-version = "22.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bd3431c245992fe51b8256c838fc2e981f8d3b0afc1d1377ca7dbe0a3287a764"
+version = "7.0.0"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
 dependencies = [
  "bytes",
  "ed25519",
@@ -4749,25 +5366,32 @@ dependencies = [
 
 [[package]]
 name = "sp-keystore"
-version = "0.26.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "452d079f592c97369c9ca8a5083b25f146751c6b5af10cbcacc2b24dc53fd72a"
+version = "0.13.0"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
 dependencies = [
  "futures",
- "merlin",
  "parity-scale-codec",
  "parking_lot 0.12.1",
- "schnorrkel",
  "sp-core",
  "sp-externalities",
  "thiserror",
 ]
 
+[[package]]
+name = "sp-metadata-ir"
+version = "0.1.0"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
+dependencies = [
+ "frame-metadata",
+ "parity-scale-codec",
+ "scale-info",
+ "sp-std",
+]
+
 [[package]]
 name = "sp-panic-handler"
-version = "7.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "75986cc917d897e0f6d0c848088064df4c74ccbb8f1c1848700b725f5ca7fe04"
+version = "5.0.0"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
 dependencies = [
  "backtrace",
  "lazy_static",
@@ -4776,9 +5400,8 @@ dependencies = [
 
 [[package]]
 name = "sp-runtime"
-version = "23.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6220216caa67e3d931c693b06a3590dfcaa255f19bb3c3e3150f1672b8bc53f6"
+version = "7.0.0"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
 dependencies = [
  "either",
  "hash256-std-hasher",
@@ -4799,9 +5422,8 @@ dependencies = [
 
 [[package]]
 name = "sp-runtime-interface"
-version = "16.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca5d0cd80200bf85b8b064238b2508b69b6146b13adf36066ec5d924825af737"
+version = "7.0.0"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
 dependencies = [
  "bytes",
  "impl-trait-for-tuples",
@@ -4818,22 +5440,33 @@ dependencies = [
 
 [[package]]
 name = "sp-runtime-interface-proc-macro"
-version = "10.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05ae5b00aef477127ddb6177b3464ad1e2bdcc12ee913fc5dfc9d065c6cea89b"
+version = "6.0.0"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
 dependencies = [
  "Inflector",
  "proc-macro-crate 1.3.1",
  "proc-macro2",
  "quote",
- "syn 1.0.109",
+ "syn 2.0.28",
+]
+
+[[package]]
+name = "sp-staking"
+version = "4.0.0-dev"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
+dependencies = [
+ "parity-scale-codec",
+ "scale-info",
+ "serde",
+ "sp-core",
+ "sp-runtime",
+ "sp-std",
 ]
 
 [[package]]
 name = "sp-state-machine"
-version = "0.27.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1e49c3bfcc8c832c34552cd8194180cc60508c6d3d9b0b9615d6b7c3e275019"
+version = "0.13.0"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
 dependencies = [
  "hash-db",
  "log",
@@ -4852,15 +5485,13 @@ dependencies = [
 
 [[package]]
 name = "sp-std"
-version = "7.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1de8eef39962b5b97478719c493bed2926cf70cb621005bbf68ebe58252ff986"
+version = "5.0.0"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
 
 [[package]]
 name = "sp-storage"
-version = "12.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9ad1f8c52d4700ac7bc42b3375679a6c6fc1fe876f4b40c6efdf36f933ef0291"
+version = "7.0.0"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
 dependencies = [
  "impl-serde",
  "parity-scale-codec",
@@ -4872,9 +5503,8 @@ dependencies = [
 
 [[package]]
 name = "sp-tracing"
-version = "9.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "00fab60bf3d42255ce3f678903d3a2564662371c75623de4a1ffc7cac46143df"
+version = "6.0.0"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
 dependencies = [
  "parity-scale-codec",
  "sp-std",
@@ -4885,9 +5515,8 @@ dependencies = [
 
 [[package]]
 name = "sp-trie"
-version = "21.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "58401c53c08b6ecad83acd7e14534c8bbcb3fa73e81e26685e0ac70e51b00c56"
+version = "7.0.0"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
 dependencies = [
  "ahash 0.8.3",
  "hash-db",
@@ -4907,26 +5536,52 @@ dependencies = [
  "trie-root",
 ]
 
+[[package]]
+name = "sp-version"
+version = "5.0.0"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
+dependencies = [
+ "impl-serde",
+ "parity-scale-codec",
+ "parity-wasm",
+ "scale-info",
+ "serde",
+ "sp-core-hashing-proc-macro",
+ "sp-runtime",
+ "sp-std",
+ "sp-version-proc-macro",
+ "thiserror",
+]
+
+[[package]]
+name = "sp-version-proc-macro"
+version = "4.0.0-dev"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
+dependencies = [
+ "parity-scale-codec",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.28",
+]
+
 [[package]]
 name = "sp-wasm-interface"
-version = "13.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "153b7374179439e2aa783c66ed439bd86920c67bbc95d34c76390561972bc02f"
+version = "7.0.0"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
 dependencies = [
  "anyhow",
  "impl-trait-for-tuples",
  "log",
  "parity-scale-codec",
  "sp-std",
- "wasmi",
+ "wasmi 0.13.2",
  "wasmtime",
 ]
 
 [[package]]
 name = "sp-weights"
-version = "19.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "123c661915e1bf328e21f8ecbe4e5247feba86f9149b782ea4348004547ce8ef"
+version = "4.0.0"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot-v0.9.43#5e49f6e44820affccaf517fd22af564f4b495d40"
 dependencies = [
  "parity-scale-codec",
  "scale-info",
@@ -4953,6 +5608,16 @@ dependencies = [
  "lock_api",
 ]
 
+[[package]]
+name = "spki"
+version = "0.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9d1e996ef02c474957d681f1b05213dfb0abab947b446a62d37770b23500184a"
+dependencies = [
+ "base64ct",
+ "der",
+]
+
 [[package]]
 name = "sqlformat"
 version = "0.2.1"
@@ -4984,7 +5649,7 @@ dependencies = [
  "atoi",
  "base64 0.13.1",
  "bigdecimal",
- "bitflags",
+ "bitflags 1.3.2",
  "byteorder",
  "bytes",
  "chrono",
@@ -5003,7 +5668,7 @@ dependencies = [
  "hex",
  "hkdf",
  "hmac 0.12.1",
- "indexmap",
+ "indexmap 1.9.3",
  "itoa",
  "libc",
  "libsqlite3-sys",
@@ -5019,7 +5684,7 @@ dependencies = [
  "serde",
  "serde_json",
  "sha1",
- "sha2 0.10.6",
+ "sha2 0.10.7",
  "smallvec",
  "sqlformat",
  "sqlx-rt",
@@ -5065,9 +5730,9 @@ dependencies = [
 
 [[package]]
 name = "ss58-registry"
-version = "1.40.0"
+version = "1.41.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eb47a8ad42e5fc72d5b1eb104a5546937eaf39843499948bb666d6e93c62423b"
+checksum = "bfc443bad666016e012538782d9e3006213a7db43e9fb1dda91657dc06a6fa08"
 dependencies = [
  "Inflector",
  "num-format",
@@ -5092,9 +5757,9 @@ checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
 
 [[package]]
 name = "stringprep"
-version = "0.1.2"
+version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8ee348cb74b87454fff4b551cbf727025810a004f88aeacae7f85b87f4e9a1c1"
+checksum = "db3737bde7edce97102e0e2b15365bf7a20bfdb5f60f4f9e8d7004258a51a8da"
 dependencies = [
  "unicode-bidi",
  "unicode-normalization",
@@ -5107,103 +5772,49 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
 
 [[package]]
-name = "substrate-bip39"
-version = "0.4.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49eee6965196b32f882dd2ee85a92b1dbead41b04e53907f269de3b0dc04733c"
-dependencies = [
- "hmac 0.11.0",
- "pbkdf2 0.8.0",
- "schnorrkel",
- "sha2 0.9.9",
- "zeroize",
-]
-
-[[package]]
-name = "subtle"
-version = "2.4.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6bdef32e8150c2a081110b42772ffe7d7c9032b606bc226c8260fd97e0976601"
-
-[[package]]
-name = "subxt"
-version = "0.28.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "53b9c4ddefcb2d87eb18a6336f65635c29208f766d0deefaa2a1a19f7426a993"
+name = "substrate-api-client"
+version = "0.12.0"
+source = "git+https://github.com/scs/substrate-api-client?branch=polkadot-v0.9.43#6faaf232a8c5761d4ce69d0006d5312956f64bdc"
 dependencies = [
- "base58",
- "blake2",
- "derivative",
- "either",
+ "ac-compose-macros",
+ "ac-node-api",
+ "ac-primitives",
+ "async-trait",
+ "derive_more",
  "frame-metadata",
+ "frame-support",
  "futures",
- "getrandom 0.2.9",
  "hex",
- "impl-serde",
  "jsonrpsee",
+ "log",
+ "maybe-async",
  "parity-scale-codec",
- "parking_lot 0.12.1",
- "primitive-types",
- "scale-bits",
- "scale-decode",
- "scale-encode",
- "scale-info",
- "scale-value",
  "serde",
  "serde_json",
  "sp-core",
- "sp-core-hashing",
  "sp-runtime",
- "subxt-macro",
- "subxt-metadata",
- "thiserror",
- "tracing",
-]
-
-[[package]]
-name = "subxt-codegen"
-version = "0.28.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e924f41069e9273236398ff89662d6d336468a5d94faac812129d44547db0e7f"
-dependencies = [
- "darling 0.14.4",
- "frame-metadata",
- "heck 0.4.1",
- "hex",
- "jsonrpsee",
- "parity-scale-codec",
- "proc-macro2",
- "quote",
- "scale-info",
- "subxt-metadata",
- "syn 1.0.109",
- "thiserror",
- "tokio",
+ "sp-runtime-interface",
+ "url",
 ]
 
 [[package]]
-name = "subxt-macro"
-version = "0.28.0"
+name = "substrate-bip39"
+version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ced0b043a069ee039f8700d3dfda01be156e4229c82277c305bc8e79a7dd855d"
+checksum = "49eee6965196b32f882dd2ee85a92b1dbead41b04e53907f269de3b0dc04733c"
 dependencies = [
- "darling 0.14.4",
- "proc-macro-error",
- "subxt-codegen",
- "syn 1.0.109",
+ "hmac 0.11.0",
+ "pbkdf2 0.8.0",
+ "schnorrkel",
+ "sha2 0.9.9",
+ "zeroize",
 ]
 
 [[package]]
-name = "subxt-metadata"
-version = "0.28.0"
+name = "subtle"
+version = "2.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "18be3b8f4308fe7369ee1df66ae59c2eca79de20eab57b0f41c75736e843300f"
-dependencies = [
- "frame-metadata",
- "parity-scale-codec",
- "scale-info",
- "sp-core-hashing",
-]
+checksum = "6bdef32e8150c2a081110b42772ffe7d7c9032b606bc226c8260fd97e0976601"
 
 [[package]]
 name = "syn"
@@ -5218,9 +5829,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.18"
+version = "2.0.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "32d41677bcbe24c20c52e7c70b0d8db04134c5d1066bf98662e2871ad200ea3e"
+checksum = "04361975b3f5e348b2189d8dc55bc942f278b2d482a6a0365de5bdd62d351567"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -5241,9 +5852,9 @@ checksum = "55937e1799185b12863d447f42597ed69d9928686b8d88a1df17376a097d8369"
 
 [[package]]
 name = "tar"
-version = "0.4.38"
+version = "0.4.39"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4b55807c0344e1e6c04d7c965f5289c39a8d94ae23ed5c0b57aabac549f871c6"
+checksum = "ec96d2ffad078296368d46ff1cb309be1c23c513b4ab0e22a45de0185275ac96"
 dependencies = [
  "filetime",
  "libc",
@@ -5252,21 +5863,21 @@ dependencies = [
 
 [[package]]
 name = "target-lexicon"
-version = "0.12.7"
+version = "0.12.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fd1ba337640d60c3e96bc6f0638a939b9c9a7f2c316a1598c279828b3d1dc8c5"
+checksum = "9d0e916b1148c8e263850e1ebcbd046f333e0683c724876bb0da63ea4373dc8a"
 
 [[package]]
 name = "tempfile"
-version = "3.5.0"
+version = "3.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9fbec84f381d5795b08656e4912bec604d162bff9291d6189a78f4c8ab87998"
+checksum = "5486094ee78b2e5038a6382ed7645bc084dc2ec433426ca4c3cb61e2007b8998"
 dependencies = [
  "cfg-if",
- "fastrand",
+ "fastrand 2.0.0",
  "redox_syscall 0.3.5",
- "rustix 0.37.19",
- "windows-sys 0.45.0",
+ "rustix 0.38.4",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -5286,22 +5897,22 @@ checksum = "222a222a5bfe1bba4a77b45ec488a741b3cb8872e5e499451fd7d0129c9c7c3d"
 
 [[package]]
 name = "thiserror"
-version = "1.0.40"
+version = "1.0.44"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "978c9a314bd8dc99be594bc3c175faaa9794be04a5a5e153caba6915336cebac"
+checksum = "611040a08a0439f8248d1990b111c95baa9c704c805fa1f62104b39655fd7f90"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.40"
+version = "1.0.44"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f9456a42c5b0d803c8cd86e73dd7cc9edd429499f37a3550d286d5e86720569f"
+checksum = "090198534930841fab3a5d1bb637cde49e339654e606195f8d9c76eeb081dc96"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.18",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -5316,10 +5927,11 @@ dependencies = [
 
 [[package]]
 name = "time"
-version = "0.3.21"
+version = "0.3.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f3403384eaacbca9923fa06940178ac13e4edb725486d70e8e15881d0c836cc"
+checksum = "b79eabcd964882a646b3584543ccabeae7869e9ac32a46f6f22b7a5bd405308b"
 dependencies = [
+ "deranged",
  "itoa",
  "serde",
  "time-core",
@@ -5334,9 +5946,9 @@ checksum = "7300fbefb4dadc1af235a9cef3737cea692a9d97e1b9cbcd4ebdae6f8868e6fb"
 
 [[package]]
 name = "time-macros"
-version = "0.2.9"
+version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "372950940a5f07bf38dbe211d7283c9e6d7327df53794992d293e534c733d09b"
+checksum = "eb71511c991639bb078fd5bf97757e03914361c48100d52878b8e52b46fb92cd"
 dependencies = [
  "time-core",
 ]
@@ -5353,7 +5965,7 @@ dependencies = [
  "pbkdf2 0.11.0",
  "rand 0.8.5",
  "rustc-hash",
- "sha2 0.10.6",
+ "sha2 0.10.7",
  "thiserror",
  "unicode-normalization",
  "wasm-bindgen",
@@ -5377,11 +5989,12 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
 
 [[package]]
 name = "tokio"
-version = "1.28.2"
+version = "1.29.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94d7b1cfd2aa4011f2de74c2c4c63665e27a71006b0a192dcd2710272e73dfa2"
+checksum = "532826ff75199d5833b9d2c5fe410f29235e25704ee5f0ef599fb51c21f4a4da"
 dependencies = [
  "autocfg",
+ "backtrace",
  "bytes",
  "libc",
  "mio",
@@ -5401,7 +6014,7 @@ checksum = "630bdcf245f78637c13ec01ffae6187cca34625e8c63150d424b59e55af2675e"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.18",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -5427,11 +6040,11 @@ dependencies = [
 
 [[package]]
 name = "tokio-rustls"
-version = "0.24.0"
+version = "0.24.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e0d409377ff5b1e3ca6437aa86c1eb7d40c134bfec254e44c830defa92669db5"
+checksum = "c28327cf380ac148141087fbfb9de9d7bd4e84ab5d2c28fbc911d753de8a7081"
 dependencies = [
- "rustls 0.21.1",
+ "rustls 0.21.5",
  "tokio",
 ]
 
@@ -5472,9 +6085,9 @@ dependencies = [
 
 [[package]]
 name = "toml"
-version = "0.7.4"
+version = "0.7.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d6135d499e69981f9ff0ef2167955a5333c35e36f6937d382974566b3d5b94ec"
+checksum = "c17e963a819c331dcacd7ab957d80bc2b9a9c1e71c804826d2f283dd65306542"
 dependencies = [
  "serde",
  "serde_spanned",
@@ -5484,20 +6097,20 @@ dependencies = [
 
 [[package]]
 name = "toml_datetime"
-version = "0.6.2"
+version = "0.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5a76a9312f5ba4c2dec6b9161fdf25d87ad8a09256ccea5a556fef03c706a10f"
+checksum = "7cda73e2f1397b1262d6dfdcef8aafae14d1de7748d66822d3bfeeb6d03e5e4b"
 dependencies = [
  "serde",
 ]
 
 [[package]]
 name = "toml_edit"
-version = "0.19.10"
+version = "0.19.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2380d56e8670370eee6566b0bfd4265f65b3f432e8c6d85623f728d4fa31f739"
+checksum = "f8123f27e969974a3dfba720fdb560be359f57b44302d280ba72e76a74480e8a"
 dependencies = [
- "indexmap",
+ "indexmap 2.0.0",
  "serde",
  "serde_spanned",
  "toml_datetime",
@@ -5522,11 +6135,11 @@ dependencies = [
 
 [[package]]
 name = "tower-http"
-version = "0.4.0"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5d1d42a9b3f3ec46ba828e8d376aec14592ea199f70a06a548587ecd1c4ab658"
+checksum = "55ae70283aba8d2a8b411c695c437fe25b8b5e44e23e780662002fc72fb47a82"
 dependencies = [
- "bitflags",
+ "bitflags 2.3.3",
  "bytes",
  "futures-core",
  "futures-util",
@@ -5565,13 +6178,13 @@ dependencies = [
 
 [[package]]
 name = "tracing-attributes"
-version = "0.1.24"
+version = "0.1.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0f57e3ca2a01450b1a921183a9c9cbfda207fd822cef4ccb00a65402cbba7a74"
+checksum = "5f4f31f56159e98206da9efd823404b79b6ef3143b4a7ab76e67b1751b25a4ab"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.18",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -5673,6 +6286,12 @@ version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3528ecfd12c466c6f163363caf2d02a71161dd5e1cc6ae7b34207ea2d42d81ed"
 
+[[package]]
+name = "tt-call"
+version = "1.0.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f4f195fd851901624eee5a58c4bb2b4f06399148fcd0ed336e6f1cb60a9881df"
+
 [[package]]
 name = "twox-hash"
 version = "1.6.3"
@@ -5729,9 +6348,9 @@ checksum = "92888ba5573ff080736b3648696b70cafad7d250551175acbaa4e0385b3e1460"
 
 [[package]]
 name = "unicode-ident"
-version = "1.0.9"
+version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b15811caf2415fb889178633e7724bad2509101cde276048e013b9def5e51fa0"
+checksum = "301abaae475aa91687eb82514b328ab47a211a533026cb25fc3e519b86adfc3c"
 
 [[package]]
 name = "unicode-normalization"
@@ -5793,20 +6412,20 @@ checksum = "a156c684c91ea7d62626509bce3cb4e1d9ed5c4d978f7b4352658f96a4c26b4a"
 
 [[package]]
 name = "url"
-version = "2.3.1"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0d68c799ae75762b8c3fe375feb6600ef5602c883c5d21eb51c09f22b83c4643"
+checksum = "50bff7831e19200a85b17131d085c25d7811bc4e186efdaf54bbd132994a88cb"
 dependencies = [
  "form_urlencoded",
- "idna 0.3.0",
+ "idna",
  "percent-encoding",
 ]
 
 [[package]]
 name = "urlencoding"
-version = "2.1.2"
+version = "2.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e8db7427f936968176eaa7cdf81b7f98b980b18495ec28f1b5791ac3bfe3eea9"
+checksum = "daf8dba3b7eb870caf1ddeed7bc9d2a049f3cfdfae7cb521b087cc33ae4c49da"
 
 [[package]]
 name = "utf8-width"
@@ -5822,20 +6441,20 @@ checksum = "711b9620af191e0cdc7468a8d14e709c3dcdb115b36f838e601583af800a370a"
 
 [[package]]
 name = "uuid"
-version = "1.3.3"
+version = "1.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "345444e32442451b267fc254ae85a209c64be56d2890e601a0c37ff0c3c5ecd2"
+checksum = "79daa5ed5740825c40b389c5e50312b9c86df53fccd33f281df655642b43869d"
 dependencies = [
  "serde",
 ]
 
 [[package]]
 name = "validator"
-version = "0.16.0"
+version = "0.16.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "32ad5bf234c7d3ad1042e5252b7eddb2c4669ee23f32c7dd0e9b7705f07ef591"
+checksum = "b92f40481c04ff1f4f61f304d61793c7b56ff76ac1469f1beb199b1445b253bd"
 dependencies = [
- "idna 0.2.3",
+ "idna",
  "lazy_static",
  "regex",
  "serde",
@@ -5907,11 +6526,10 @@ dependencies = [
 
 [[package]]
 name = "want"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1ce8a968cb1cd110d136ff8b819a556d6fb6d919363c61534f6860c7eb172ba0"
+checksum = "bfa7760aed19e106de2c7c0b581b509f2f25d3dacaf737cb82ac61bc6d760b0e"
 dependencies = [
- "log",
  "try-lock",
 ]
 
@@ -5929,9 +6547,9 @@ checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.86"
+version = "0.2.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5bba0e8cb82ba49ff4e229459ff22a191bbe9a1cb3a341610c9c33efc27ddf73"
+checksum = "7706a72ab36d8cb1f80ffbf0e071533974a60d0a308d01a5d0375bf60499a342"
 dependencies = [
  "cfg-if",
  "wasm-bindgen-macro",
@@ -5939,24 +6557,24 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.86"
+version = "0.2.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "19b04bc93f9d6bdee709f6bd2118f57dd6679cf1176a1af464fca3ab0d66d8fb"
+checksum = "5ef2b6d3c510e9625e5fe6f509ab07d66a760f0885d858736483c32ed7809abd"
 dependencies = [
  "bumpalo",
  "log",
  "once_cell",
  "proc-macro2",
  "quote",
- "syn 2.0.18",
+ "syn 2.0.28",
  "wasm-bindgen-shared",
 ]
 
 [[package]]
 name = "wasm-bindgen-futures"
-version = "0.4.36"
+version = "0.4.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2d1985d03709c53167ce907ff394f5316aa22cb4e12761295c5dc57dacb6297e"
+checksum = "c02dbc21516f9f1f04f187958890d7e6026df8d16540b7ad9492bc34a67cea03"
 dependencies = [
  "cfg-if",
  "js-sys",
@@ -5966,9 +6584,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.86"
+version = "0.2.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "14d6b024f1a526bb0234f52840389927257beb670610081360e5a03c5df9c258"
+checksum = "dee495e55982a3bd48105a7b947fd2a9b4a8ae3010041b9e0faab3f9cd028f1d"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -5976,22 +6594,31 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.86"
+version = "0.2.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e128beba882dd1eb6200e1dc92ae6c5dbaa4311aa7bb211ca035779e5efc39f8"
+checksum = "54681b18a46765f095758388f2d0cf16eb8d4169b639ab575a8f5693af210c7b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.18",
+ "syn 2.0.28",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.86"
+version = "0.2.87"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca6ad05a4870b2bf5fe995117d3728437bd27d7cd5f06f13c17443ef369775a1"
+
+[[package]]
+name = "wasm-instrument"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ed9d5b4305409d1fc9482fee2d7f9bcbf24b3972bf59817ef757e23982242a93"
+checksum = "2a47ecb37b9734d1085eaa5ae1a81e60801fd8c28d4cabdd8aedb982021918bc"
+dependencies = [
+ "parity-wasm",
+]
 
 [[package]]
 name = "wasmi"
@@ -6001,7 +6628,19 @@ checksum = "06c326c93fbf86419608361a2c925a31754cf109da1b8b55737070b4d6669422"
 dependencies = [
  "parity-wasm",
  "wasmi-validation",
- "wasmi_core",
+ "wasmi_core 0.2.1",
+]
+
+[[package]]
+name = "wasmi"
+version = "0.28.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e61a7006b0fdf24f6bbe8dcfdad5ca1b350de80061fb2827f31c82fbbb9565a"
+dependencies = [
+ "spin 0.9.8",
+ "wasmi_arena",
+ "wasmi_core 0.12.0",
+ "wasmparser-nostd",
 ]
 
 [[package]]
@@ -6013,6 +6652,12 @@ dependencies = [
  "parity-wasm",
 ]
 
+[[package]]
+name = "wasmi_arena"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "401c1f35e413fac1846d4843745589d9ec678977ab35a384db8ae7830525d468"
+
 [[package]]
 name = "wasmi_core"
 version = "0.2.1"
@@ -6026,29 +6671,50 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "wasmi_core"
+version = "0.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "624e6333e861ef49095d2d678b76ebf30b06bf37effca845be7e5b87c90071b7"
+dependencies = [
+ "downcast-rs",
+ "libm",
+ "num-traits",
+ "paste",
+]
+
 [[package]]
 name = "wasmparser"
-version = "0.100.0"
+version = "0.102.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "64b20236ab624147dfbb62cf12a19aaf66af0e41b8398838b66e997d07d269d4"
+checksum = "48134de3d7598219ab9eaf6b91b15d8e50d31da76b8519fe4ecfcec2cf35104b"
 dependencies = [
- "indexmap",
+ "indexmap 1.9.3",
  "url",
 ]
 
+[[package]]
+name = "wasmparser-nostd"
+version = "0.100.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9157cab83003221bfd385833ab587a039f5d6fa7304854042ba358a3b09e0724"
+dependencies = [
+ "indexmap-nostd",
+]
+
 [[package]]
 name = "wasmtime"
-version = "6.0.2"
+version = "8.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "76a222f5fa1e14b2cefc286f1b68494d7a965f4bf57ec04c59bb62673d639af6"
+checksum = "f907fdead3153cb9bfb7a93bbd5b62629472dc06dee83605358c64c52ed3dda9"
 dependencies = [
  "anyhow",
  "bincode",
  "cfg-if",
- "indexmap",
+ "indexmap 1.9.3",
  "libc",
  "log",
- "object 0.29.0",
+ "object 0.30.4",
  "once_cell",
  "paste",
  "psm",
@@ -6058,30 +6724,30 @@ dependencies = [
  "wasmtime-environ",
  "wasmtime-jit",
  "wasmtime-runtime",
- "windows-sys 0.42.0",
+ "windows-sys 0.45.0",
 ]
 
 [[package]]
 name = "wasmtime-asm-macros"
-version = "6.0.2"
+version = "8.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4407a7246e7d2f3d8fb1cf0c72fda8dbafdb6dd34d555ae8bea0e5ae031089cc"
+checksum = "d3b9daa7c14cd4fa3edbf69de994408d5f4b7b0959ac13fa69d465f6597f810d"
 dependencies = [
  "cfg-if",
 ]
 
 [[package]]
 name = "wasmtime-environ"
-version = "6.0.2"
+version = "8.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "47b8b50962eae38ee319f7b24900b7cf371f03eebdc17400c1dc8575fc10c9a7"
+checksum = "a990198cee4197423045235bf89d3359e69bd2ea031005f4c2d901125955c949"
 dependencies = [
  "anyhow",
  "cranelift-entity",
- "gimli 0.26.2",
- "indexmap",
+ "gimli",
+ "indexmap 1.9.3",
  "log",
- "object 0.29.0",
+ "object 0.30.4",
  "serde",
  "target-lexicon",
  "thiserror",
@@ -6091,57 +6757,57 @@ dependencies = [
 
 [[package]]
 name = "wasmtime-jit"
-version = "6.0.2"
+version = "8.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ffaed4f9a234ba5225d8e64eac7b4a5d13b994aeb37353cde2cbeb3febda9eaa"
+checksum = "0de48df552cfca1c9b750002d3e07b45772dd033b0b206d5c0968496abf31244"
 dependencies = [
- "addr2line 0.17.0",
+ "addr2line 0.19.0",
  "anyhow",
  "bincode",
  "cfg-if",
  "cpp_demangle",
- "gimli 0.26.2",
+ "gimli",
  "log",
- "object 0.29.0",
+ "object 0.30.4",
  "rustc-demangle",
  "serde",
  "target-lexicon",
  "wasmtime-environ",
  "wasmtime-jit-icache-coherence",
  "wasmtime-runtime",
- "windows-sys 0.42.0",
+ "windows-sys 0.45.0",
 ]
 
 [[package]]
 name = "wasmtime-jit-debug"
-version = "6.0.2"
+version = "8.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eed41cbcbf74ce3ff6f1d07d1b707888166dc408d1a880f651268f4f7c9194b2"
+checksum = "6e0554b84c15a27d76281d06838aed94e13a77d7bf604bbbaf548aa20eb93846"
 dependencies = [
  "once_cell",
 ]
 
 [[package]]
 name = "wasmtime-jit-icache-coherence"
-version = "6.0.2"
+version = "8.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "43a28ae1e648461bfdbb79db3efdaee1bca5b940872e4175390f465593a2e54c"
+checksum = "aecae978b13f7f67efb23bd827373ace4578f2137ec110bbf6a4a7cde4121bbd"
 dependencies = [
  "cfg-if",
  "libc",
- "windows-sys 0.42.0",
+ "windows-sys 0.45.0",
 ]
 
 [[package]]
 name = "wasmtime-runtime"
-version = "6.0.2"
+version = "8.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e704b126e4252788ccfc3526d4d4511d4b23c521bf123e447ac726c14545217b"
+checksum = "658cf6f325232b6760e202e5255d823da5e348fdea827eff0a2a22319000b441"
 dependencies = [
  "anyhow",
  "cc",
  "cfg-if",
- "indexmap",
+ "indexmap 1.9.3",
  "libc",
  "log",
  "mach",
@@ -6149,18 +6815,18 @@ dependencies = [
  "memoffset",
  "paste",
  "rand 0.8.5",
- "rustix 0.36.14",
+ "rustix 0.36.15",
  "wasmtime-asm-macros",
  "wasmtime-environ",
  "wasmtime-jit-debug",
- "windows-sys 0.42.0",
+ "windows-sys 0.45.0",
 ]
 
 [[package]]
 name = "wasmtime-types"
-version = "6.0.2"
+version = "8.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "83e5572c5727c1ee7e8f28717aaa8400e4d22dcbd714ea5457d85b5005206568"
+checksum = "a4f6fffd2a1011887d57f07654dd112791e872e3ff4a2e626aee8059ee17f06f"
 dependencies = [
  "cranelift-entity",
  "serde",
@@ -6170,9 +6836,9 @@ dependencies = [
 
 [[package]]
 name = "web-sys"
-version = "0.3.63"
+version = "0.3.64"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3bdd9ef4e984da1187bf8110c5cf5b845fbc87a23602cdf912386a76fcd3a7c2"
+checksum = "9b85cbef8c220a6abc02aefd892dfc0fc23afb1c6a426316ec33253a3877249b"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
@@ -6210,14 +6876,24 @@ dependencies = [
 
 [[package]]
 name = "whoami"
-version = "1.4.0"
+version = "1.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2c70234412ca409cc04e864e89523cb0fc37f5e1344ebed5a3ebf4192b6b9f68"
+checksum = "22fc3756b8a9133049b26c7f61ab35416c130e8c09b660f5b3958b446f52cc50"
 dependencies = [
  "wasm-bindgen",
  "web-sys",
 ]
 
+[[package]]
+name = "wide"
+version = "0.7.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa469ffa65ef7e0ba0f164183697b89b854253fd31aeb92358b7b6155177d62f"
+dependencies = [
+ "bytemuck",
+ "safe_arch",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -6255,22 +6931,7 @@ version = "0.48.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e686886bc078bc1b0b600cac0147aadb815089b6e4da64016cbd754b6342700f"
 dependencies = [
- "windows-targets 0.48.0",
-]
-
-[[package]]
-name = "windows-sys"
-version = "0.42.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5a3e1820f08b8513f676f7ab6c1f99ff312fb97b553d30ff4dd86f9f15728aa7"
-dependencies = [
- "windows_aarch64_gnullvm 0.42.2",
- "windows_aarch64_msvc 0.42.2",
- "windows_i686_gnu 0.42.2",
- "windows_i686_msvc 0.42.2",
- "windows_x86_64_gnu 0.42.2",
- "windows_x86_64_gnullvm 0.42.2",
- "windows_x86_64_msvc 0.42.2",
+ "windows-targets 0.48.1",
 ]
 
 [[package]]
@@ -6288,7 +6949,7 @@ version = "0.48.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
 dependencies = [
- "windows-targets 0.48.0",
+ "windows-targets 0.48.1",
 ]
 
 [[package]]
@@ -6308,9 +6969,9 @@ dependencies = [
 
 [[package]]
 name = "windows-targets"
-version = "0.48.0"
+version = "0.48.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b1eb6f0cd7c80c79759c929114ef071b87354ce476d9d94271031c0497adfd5"
+checksum = "05d4b17490f70499f20b9e791dcf6a299785ce8af4d709018206dc5b4953e95f"
 dependencies = [
  "windows_aarch64_gnullvm 0.48.0",
  "windows_aarch64_msvc 0.48.0",
@@ -6407,9 +7068,9 @@ checksum = "1a515f5799fe4961cb532f983ce2b23082366b898e52ffbce459c86f67c8378a"
 
 [[package]]
 name = "winnow"
-version = "0.4.6"
+version = "0.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "61de7bac303dc551fe038e2b3cef0f571087a47571ea6e79a87692ac99b99699"
+checksum = "f46aab759304e4d7b2075a9aecba26228bb073ee8c50db796b2c72c676b5d807"
 dependencies = [
  "memchr",
 ]
@@ -6455,15 +7116,9 @@ checksum = "735a71d46c4d68d71d4b24d03fdc2b98e38cea81730595801db779c04fe80d70"
 
 [[package]]
 name = "yansi"
-version = "0.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09041cd90cf85f7f8b2df60c646f853b7f535ce68f85244eb6731cf89fa498ec"
-
-[[package]]
-name = "yap"
-version = "0.10.0"
+version = "1.0.0-rc"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2a7eb6d82a11e4d0b8e6bda8347169aff4ccd8235d039bba7c47482d977dcf7"
+checksum = "9ee746ad3851dd3bc40e4a028ab3b00b99278d929e48957bcb2d111874a7e43e"
 
 [[package]]
 name = "zeroize"
@@ -6482,7 +7137,7 @@ checksum = "ce36e65b0d2999d2aafac989fb249189a141aee1f53c612c1f37d72631959f69"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.18",
+ "syn 2.0.28",
 ]
 
 [[package]]
diff --git a/crates/builder/src/cli.rs b/crates/builder/src/cli.rs
index 4888ce9..9de182e 100644
--- a/crates/builder/src/cli.rs
+++ b/crates/builder/src/cli.rs
@@ -1,3 +1,5 @@
+use std::path::PathBuf;
+
 use clap::{Parser, Subcommand};
 
 /// CLI configuration, provided for the [`clap`] crate.
@@ -7,6 +9,10 @@ pub(crate) struct Cli {
     /// Selected subcommand.
     #[command(subcommand)]
     pub command: Command,
+
+    /// Path to configuration file.
+    #[arg(short, long, value_parser)]
+    pub config: Option<PathBuf>,
 }
 
 /// Available subcommands.
diff --git a/crates/builder/src/commands.rs b/crates/builder/src/commands.rs
index 0cfda2d..2b85c8d 100644
--- a/crates/builder/src/commands.rs
+++ b/crates/builder/src/commands.rs
@@ -1,3 +1,4 @@
+/// `serve` subcommand.
 mod serve;
 
 pub use serve::serve;
diff --git a/crates/builder/src/main.rs b/crates/builder/src/main.rs
index 05384c9..09c9f40 100644
--- a/crates/builder/src/main.rs
+++ b/crates/builder/src/main.rs
@@ -34,6 +34,9 @@
 //!
 //! See [`log_collector`] for more details.
 
+#![deny(missing_docs)]
+#![deny(clippy::missing_docs_in_private_items)]
+
 /// CLI configuration and available subcommands.
 mod cli;
 
@@ -55,7 +58,9 @@ use tracing::info;
 /// Smart contract builder entrypoint.
 #[tokio::main]
 async fn main() -> Result<(), anyhow::Error> {
-    let config = Config::new()?;
+    let cli = Cli::parse();
+
+    let config = Config::new(cli.config)?;
 
     logging::init(&config);
 
@@ -67,7 +72,7 @@ async fn main() -> Result<(), anyhow::Error> {
     let database = Database::connect(&config.database.url).await?;
     info!("database connection established");
 
-    match Cli::parse().command {
+    match cli.command {
         Command::Serve => commands::serve(builder_config, config.storage, database).await?,
     }
 
diff --git a/crates/builder/src/process/container.rs b/crates/builder/src/process/container.rs
index 7780def..1062107 100644
--- a/crates/builder/src/process/container.rs
+++ b/crates/builder/src/process/container.rs
@@ -10,6 +10,7 @@ use bollard::{
         LogOutput, RemoveContainerOptions,
     },
     errors::Error,
+    image::{CreateImageOptions, ListImagesOptions},
     service::MountTypeEnum,
     service::{
         ContainerWaitResponse, HostConfig, Mount, MountVolumeOptions,
@@ -20,6 +21,7 @@ use bollard::{
 use common::config;
 use derive_more::{Display, Error, From};
 use futures_util::{Stream, TryStreamExt};
+use tracing::info;
 
 use crate::process::volume::{Volume, VolumeError};
 
@@ -51,6 +53,31 @@ pub enum DownloadFromContainerError {
     FileNotFound,
 }
 
+/// Supported container images.
+pub enum Image<'a> {
+    /// Unarchive image, produced using Nix.
+    Unarchive,
+
+    /// Build image, automatically downloaded from Docker registry.
+    Build {
+        /// `cargo-contract` version to use during image download process.
+        version: &'a str,
+    },
+
+    /// Artifact rename image, produced using Nix.
+    Move,
+}
+
+impl<'a> fmt::Display for Image<'a> {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Image::Unarchive => write!(f, "stage-unarchive"),
+            Image::Build { version } => write!(f, "paritytech/contracts-verifiable:{version}"),
+            Image::Move => write!(f, "stage-move"),
+        }
+    }
+}
+
 /// A single running Docker container instance.
 pub struct Container {
     /// Docker-specific container identifier.
@@ -60,32 +87,16 @@ pub struct Container {
     volume: Volume,
 }
 
-/// Container environment variables.
-pub struct Environment<'a, U: fmt::Display> {
-    /// Build session file upload token.
-    pub build_session_token: &'a str,
-
-    /// Rust toolchain version used to build the contract.
-    pub rustc_version: &'a str,
-
-    /// `cargo-contract` version used to build the contract.
-    pub cargo_contract_version: &'a str,
-
-    /// S3 pre-signed URL to the source code archive.
-    pub source_code_url: U,
-
-    /// API server URL used to upload the source code archive contents.
-    pub api_server_url: &'a str,
-}
-
 impl Container {
     /// Spawn new Docker container with the provided configuration.
-    pub async fn new<U: fmt::Display>(
+    pub async fn new(
         config: &config::Builder,
         client: &Docker,
         volume: Volume,
-        env: Environment<'_, U>,
-    ) -> Result<Self, Error> {
+        name: &str,
+        image: Image<'_>,
+        env: Option<Vec<&str>>,
+    ) -> Result<Self, (Error, Volume)> {
         // Attempt to isolate container as much as possible.
         //
         // The provided container configuration should protect
@@ -99,7 +110,7 @@ impl Container {
             memory_swap: Some(config.memory_swap_limit),
             // Mount the passed volume as a home directory of a root user.
             mounts: Some(vec![Mount {
-                target: Some(String::from("/root")),
+                target: Some(String::from("/contract")),
                 typ: Some(MountTypeEnum::VOLUME),
                 volume_options: Some(MountVolumeOptions {
                     driver_config: Some(MountVolumeOptionsDriverConfig {
@@ -118,33 +129,43 @@ impl Container {
             ..Default::default()
         };
 
-        let container = client
+        let image_str = image.to_string();
+
+        let cmd = if let Image::Build { .. } = image {
+            if let Err(err) = Self::ensure_image_exists(client, &image_str).await {
+                return Err((err, volume));
+            }
+
+            Some(vec!["build", "--release"])
+        } else {
+            None
+        };
+
+        let container = match client
             .create_container(
                 Some(CreateContainerOptions {
-                    name: env.build_session_token,
-                    ..Default::default()
+                    name,
+                    platform: Some("linux/amd64"),
                 }),
                 Config {
-                    image: Some("ink-builder"),
-                    // Pass information about the current build session to container
-                    env: Some(vec![
-                        &format!("SOURCE_CODE_URL={}", env.source_code_url),
-                        &format!("CARGO_CONTRACT_VERSION={}", env.cargo_contract_version),
-                        &format!("RUST_VERSION={}", env.rustc_version),
-                        &format!("BUILD_SESSION_TOKEN={}", env.build_session_token),
-                        &format!("API_SERVER_URL={}", env.api_server_url),
-                    ]),
+                    image: Some(&*image_str),
+                    cmd,
+                    env,
                     host_config: Some(host_config),
                     attach_stdout: Some(true),
                     attach_stderr: Some(true),
                     ..Default::default()
                 },
             )
-            .await?;
+            .await
+        {
+            Ok(container) => container,
+            Err(err) => return Err((err, volume)),
+        };
 
-        client
-            .start_container::<String>(&container.id, None)
-            .await?;
+        if let Err(err) = client.start_container::<String>(&container.id, None).await {
+            return Err((err, volume));
+        }
 
         Ok(Self {
             id: container.id,
@@ -181,7 +202,7 @@ impl Container {
         client: &Docker,
         buf: &'a mut [u8],
     ) -> Result<&'a [u8], DownloadFromContainerError> {
-        self.download_from_container_to_buf(client, "/root/artifacts/ink/main.wasm", buf)
+        self.download_from_container_to_buf(client, "/contract/target/ink/main.wasm", buf)
             .await
     }
 
@@ -193,7 +214,7 @@ impl Container {
         client: &Docker,
         buf: &'a mut [u8],
     ) -> Result<&'a [u8], DownloadFromContainerError> {
-        self.download_from_container_to_buf(client, "/root/artifacts/ink/main.json", buf)
+        self.download_from_container_to_buf(client, "/contract/target/ink/main.json", buf)
             .await
     }
 
@@ -205,8 +226,8 @@ impl Container {
         client.wait_container::<String>(&self.id, None)
     }
 
-    /// Remove the current Docker container and close the related [`Volume`].
-    pub async fn remove(self, client: &Docker) -> Result<(), ContainerRemoveError> {
+    /// Remove the current Docker container and retrieve the inner [`Volume`] value.
+    pub async fn remove(self, client: &Docker) -> Result<Volume, ContainerRemoveError> {
         client
             .remove_container(
                 &self.id,
@@ -218,7 +239,36 @@ impl Container {
             )
             .await?;
 
-        self.volume.close().await?;
+        Ok(self.volume)
+    }
+
+    /// Ensure that the image with the provided name exists.
+    ///
+    /// If it doesn't, an attempt to pull it from Docker registry will be made.
+    pub async fn ensure_image_exists(client: &Docker, image: &str) -> Result<(), Error> {
+        let list = client
+            .list_images(Some(ListImagesOptions {
+                filters: HashMap::from([("reference", vec![image])]),
+                ..Default::default()
+            }))
+            .await?;
+
+        if list.is_empty() {
+            info!(%image, "downloading missing docker image");
+
+            client
+                .create_image(
+                    Some(CreateImageOptions {
+                        from_image: image,
+                        ..Default::default()
+                    }),
+                    None,
+                    None,
+                )
+                .map_ok(|_| ())
+                .try_collect::<()>()
+                .await?;
+        }
 
         Ok(())
     }
diff --git a/crates/builder/src/process/worker.rs b/crates/builder/src/process/worker.rs
index 35df96f..94b5fce 100644
--- a/crates/builder/src/process/worker.rs
+++ b/crates/builder/src/process/worker.rs
@@ -1,18 +1,19 @@
-use std::{convert::identity, io, sync::Arc, time::Duration};
+use std::{sync::Arc, time::Duration};
 
 use bollard::Docker;
 use common::{config, hash, s3};
 use db::{
-    build_session, build_session_token, code,
+    build_session::{self, ProcessedBuildSession},
+    build_session_token, code,
     sea_query::{LockBehavior, LockType, OnConflict},
-    source_code, ActiveValue, ColumnTrait, DatabaseConnection, DbErr, EntityTrait, QueryFilter,
-    QuerySelect, TransactionErrorExt, TransactionTrait,
+    source_code, ActiveValue, ColumnTrait, DatabaseConnection, DatabaseTransaction, DbErr,
+    EntityTrait, QueryFilter, QuerySelect, TransactionErrorExt, TransactionTrait,
 };
 use derive_more::{Display, Error, From};
-use futures_util::{pin_mut, StreamExt};
+use futures_util::{pin_mut, StreamExt, TryFutureExt};
 use itertools::Itertools;
 use tokio::{sync::mpsc::UnboundedSender, time::timeout};
-use tracing::{error, info, instrument};
+use tracing::{debug, error, instrument};
 
 use crate::{
     log_collector::LogEntry,
@@ -20,7 +21,7 @@ use crate::{
 };
 
 use super::{
-    container::{ContainerRemoveError, DownloadFromContainerError, Environment},
+    container::{ContainerRemoveError, DownloadFromContainerError, Image},
     volume::VolumeError,
 };
 
@@ -35,26 +36,6 @@ const UPDATE_PERIOD: Duration = Duration::from_secs(5);
 pub(crate) enum WorkerError {
     /// Database-related error.
     DatabaseError(DbErr),
-
-    /// Docker-related error.
-    DockerError(bollard::errors::Error),
-
-    /// IO-related error.
-    IoError(io::Error),
-
-    /// S3 storage-related error.
-    S3Error(s3::Error),
-
-    /// Volume-related error.
-    VolumeError(VolumeError),
-
-    /// Unable to acquire a [build session token](db::build_session_token)
-    #[display(fmt = "missing build session token")]
-    MissingBuildSessionToken,
-
-    /// Unable to find a [source code](db::source_code) related to the current build session.
-    #[display(fmt = "missing source code")]
-    MissingSourceCode,
 }
 
 /// Spawn a worker that will handle incoming build sessions.
@@ -86,7 +67,6 @@ pub(crate) async fn spawn(
                         .columns([
                             build_session::Column::Id,
                             build_session::Column::SourceCodeId,
-                            build_session::Column::RustcVersion,
                             build_session::Column::CargoContractVersion,
                         ])
                         .filter(build_session::Column::Status.eq(build_session::Status::New));
@@ -101,67 +81,26 @@ pub(crate) async fn spawn(
                         .one(txn)
                         .await?
                     {
-                        let archive_hash =
-                            source_code::Entity::find_by_id(build_session.source_code_id)
-                                .select_only()
-                                .column(source_code::Column::ArchiveHash)
-                                .into_tuple::<Vec<u8>>()
-                                .one(txn)
-                                .await?
-                                .ok_or(WorkerError::MissingSourceCode)?;
-
-                        let token = build_session_token::Entity::find()
-                            .select_only()
-                            .column(build_session_token::Column::Token)
-                            .filter(
-                                build_session_token::Column::BuildSessionId.eq(build_session.id),
-                            )
-                            .into_tuple::<String>()
-                            .one(txn)
-                            .await?
-                            .ok_or(WorkerError::MissingBuildSessionToken)?;
-
-                        let source_code_url = s3::ConfiguredClient::new(&storage_config)
-                            .await
-                            .get_source_code(&archive_hash)
-                            .await?;
-
-                        let volume =
-                            Volume::new(&builder_config.images_path, &builder_config.volume_size)
-                                .await?;
-
-                        let container = Container::new(
-                            &builder_config,
-                            &docker,
-                            volume,
-                            Environment {
-                                build_session_token: &token,
-                                rustc_version: &build_session.rustc_version,
-                                cargo_contract_version: &build_session.cargo_contract_version,
-                                source_code_url: source_code_url.uri(),
-                                api_server_url: &builder_config.api_server_url,
-                            },
-                        )
-                        .await?;
-
                         let mut wasm_buf = vec![0; builder_config.wasm_size_limit];
                         let mut metadata_buf = vec![0; builder_config.metadata_size_limit];
 
-                        match timeout(
-                            Duration::from_secs(builder_config.max_build_duration),
-                            handle_session(
-                                log_sender,
-                                build_session.id,
-                                &container,
+                        let val = |wasm_buf, metadata_buf| async {
+                            Instance::new(
+                                &build_session,
+                                &builder_config,
                                 &docker,
-                                &mut wasm_buf,
-                                &mut metadata_buf,
-                            ),
-                        )
-                        .await
-                        .map_err(|_| SessionError::TimedOut)
-                        .and_then(identity)
-                        {
+                                &storage_config,
+                                txn,
+                            )
+                            .unarchive()
+                            .await?
+                            .build(log_sender)
+                            .await?
+                            .get_files(wasm_buf, metadata_buf)
+                            .await
+                        };
+
+                        match val(&mut wasm_buf, &mut metadata_buf).await {
                             Ok((wasm, metadata)) => {
                                 let code_hash = hash::blake2(wasm);
 
@@ -191,9 +130,7 @@ pub(crate) async fn spawn(
                                 .exec_without_returning(txn)
                                 .await?;
                             }
-                            Err(err) => {
-                                info!(id = %build_session.id, ?err, "build session error");
-
+                            Err(_) => {
                                 build_session::Entity::update_many()
                                     .filter(build_session::Column::Id.eq(build_session.id))
                                     .col_expr(
@@ -205,10 +142,6 @@ pub(crate) async fn spawn(
                             }
                         }
 
-                        if let Err(err) = container.remove(&docker).await {
-                            error!(?err, "unable to delete container");
-                        }
-
                         Ok(false)
                     } else {
                         Ok(true)
@@ -230,9 +163,15 @@ pub(crate) async fn spawn(
 /// and are usually caused by an incorrect user input.
 #[derive(Debug, Display, Error, From)]
 enum SessionError {
+    /// Database-related error.
+    DatabaseError(DbErr),
+
     /// Docker-related error.
     DockerError(bollard::errors::Error),
 
+    /// S3 storage-related error.
+    S3Error(s3::Error),
+
     /// Volume-related error.
     VolumeError(VolumeError),
 
@@ -242,6 +181,14 @@ enum SessionError {
     /// Unable to download files from the container.
     DownloadFromContainerError(DownloadFromContainerError),
 
+    /// Unable to acquire a [build session token](db::build_session_token)
+    #[display(fmt = "missing build session token")]
+    MissingBuildSessionToken,
+
+    /// Unable to find a [source code](db::source_code) related to the current build session.
+    #[display(fmt = "missing source code")]
+    MissingSourceCode,
+
     /// Container finished its execution with a status code.
     #[display(fmt = "container exited with status code {}", _0)]
     ContainerExited(#[error(not(source))] i64),
@@ -251,20 +198,285 @@ enum SessionError {
     TimedOut,
 }
 
+/// Archived build session instance.
+struct Instance<'a> {
+    /// Inner build session database record.
+    build_session: &'a ProcessedBuildSession,
+    /// Builder component configuration.
+    builder_config: &'a config::Builder,
+    /// Docker RPC client.
+    docker: &'a Docker,
+    /// AWS S3 storage configuration.
+    storage_config: &'a config::Storage,
+    /// Current database transaction.
+    txn: &'a DatabaseTransaction,
+}
+
+impl<'a> Instance<'a> {
+    /// Create new build session [`Instance`].
+    fn new(
+        build_session: &'a ProcessedBuildSession,
+        builder_config: &'a config::Builder,
+        docker: &'a Docker,
+        storage_config: &'a config::Storage,
+        txn: &'a DatabaseTransaction,
+    ) -> Self {
+        Instance {
+            build_session,
+            builder_config,
+            docker,
+            storage_config,
+            txn,
+        }
+    }
+
+    /// Unarchive user-provided files using a separately launched container instance.
+    ///
+    /// This method returns [`UnarchivedInstance`], which can be used to start the build process itself.
+    #[instrument(skip(self), fields(id = %self.build_session.id), err(level = "info"))]
+    async fn unarchive(self) -> Result<UnarchivedInstance<'a>, SessionError> {
+        let archive_hash = source_code::Entity::find_by_id(self.build_session.source_code_id)
+            .select_only()
+            .column(source_code::Column::ArchiveHash)
+            .into_tuple::<Vec<u8>>()
+            .one(self.txn)
+            .await?
+            .ok_or(SessionError::MissingSourceCode)?;
+
+        let token = build_session_token::Entity::find()
+            .select_only()
+            .column(build_session_token::Column::Token)
+            .filter(build_session_token::Column::BuildSessionId.eq(self.build_session.id))
+            .into_tuple::<String>()
+            .one(self.txn)
+            .await?
+            .ok_or(SessionError::MissingBuildSessionToken)?;
+
+        let source_code_url = s3::ConfiguredClient::new(self.storage_config)
+            .await
+            .get_source_code(&archive_hash)
+            .await?;
+
+        debug!("creating new volume for build session");
+
+        let volume = Volume::new(
+            &self.builder_config.images_path,
+            &self.builder_config.volume_size,
+        )
+        .await?;
+
+        debug!("spawning container for the unarchiving process");
+
+        let container = match Container::new(
+            self.builder_config,
+            self.docker,
+            volume,
+            &format!("unarchive-{}", self.build_session.id),
+            Image::Unarchive,
+            Some(vec![
+                &format!("BUILD_SESSION_TOKEN={token}"),
+                &format!("SOURCE_CODE_URL={}", source_code_url.uri()),
+                &format!("API_SERVER_URL={}", self.builder_config.api_server_url),
+            ]),
+        )
+        .await
+        {
+            Ok(container) => container,
+            Err((err, volume)) => {
+                volume.close().await?;
+                return Err(err.into());
+            }
+        };
+
+        let volume = wait_and_remove(container, self.docker, self.builder_config).await?;
+
+        debug!("unarchiving process completed successfully");
+
+        Ok(UnarchivedInstance {
+            build_session: self.build_session,
+            builder_config: self.builder_config,
+            docker: self.docker,
+            volume,
+        })
+    }
+}
+
+/// Build session instance with unarchived user files.
+struct UnarchivedInstance<'a> {
+    /// Inner build session database record.
+    build_session: &'a ProcessedBuildSession,
+    /// Builder component configuration.
+    builder_config: &'a config::Builder,
+    /// Docker RPC client.
+    docker: &'a Docker,
+    /// Inner volume with unarchived source code.
+    volume: Volume,
+}
+
+impl<'a> UnarchivedInstance<'a> {
+    /// Start build process for the current build session instance.
+    #[instrument(skip(self, log_sender), fields(id = %self.build_session.id), err(level = "info"))]
+    pub async fn build(
+        self,
+        log_sender: UnboundedSender<LogEntry>,
+    ) -> Result<BuiltInstance<'a>, SessionError> {
+        debug!("spawning container for building purposes");
+
+        let container = match Container::new(
+            self.builder_config,
+            self.docker,
+            self.volume,
+            &format!("build-session-{}", self.build_session.id),
+            Image::Build {
+                version: &self.build_session.cargo_contract_version,
+            },
+            None,
+        )
+        .await
+        {
+            Ok(container) => container,
+            Err((err, volume)) => {
+                volume.close().await?;
+                return Err(err.into());
+            }
+        };
+
+        let volume = handle_session(
+            log_sender,
+            self.build_session.id,
+            container,
+            self.docker,
+            self.builder_config,
+        )
+        .await?;
+
+        debug!("container built successfully");
+
+        Ok(BuiltInstance {
+            build_session: self.build_session,
+            builder_config: self.builder_config,
+            docker: self.docker,
+            volume,
+        })
+    }
+}
+
+/// Build session with WASM and metadata artifacts available
+struct BuiltInstance<'a> {
+    /// Inner build session database record.
+    build_session: &'a ProcessedBuildSession,
+    /// Builder component configuration.
+    builder_config: &'a config::Builder,
+    /// Docker RPC client.
+    docker: &'a Docker,
+    /// Inner volume with unarchived source code.
+    volume: Volume,
+}
+
+impl<'a> BuiltInstance<'a> {
+    /// Rename artifacts files and write them into the provided buffers.
+    ///
+    /// This methods returns an [`Err`] if the provided buffers are insufficient in size to write
+    /// build artifacts.
+    #[instrument(skip(self, wasm_buf, metadata_buf), fields(id = %self.build_session.id), err(level = "info"))]
+    async fn get_files<'b>(
+        self,
+        wasm_buf: &'b mut [u8],
+        metadata_buf: &'b mut [u8],
+    ) -> Result<(&'b [u8], &'b [u8]), SessionError> {
+        debug!("spawning container for file rename purposes");
+
+        let container = match Container::new(
+            self.builder_config,
+            self.docker,
+            self.volume,
+            &format!("move-{}", self.build_session.id),
+            Image::Move,
+            None,
+        )
+        .await
+        {
+            Ok(container) => container,
+            Err((err, volume)) => {
+                volume.close().await?;
+                return Err(err.into());
+            }
+        };
+
+        let outcome = wait(&container, self.docker, self.builder_config)
+            .and_then(|_| async {
+                let wasm = container.wasm_file(self.docker, wasm_buf).await?;
+                let metadata = container.metadata_file(self.docker, metadata_buf).await?;
+
+                debug!(
+                    wasm_size = %wasm.len(),
+                    metadata_size = %metadata.len(),
+                    "retrieved WASM blob and JSON metadata successfully"
+                );
+
+                Ok((wasm, metadata))
+            })
+            .await;
+
+        container.remove(self.docker).await?.close().await?;
+
+        outcome
+    }
+}
+
+/// Wait for the provided [`Container`] to finish running.
+///
+/// This function returns an [`Err`] if container returns non-zero exit code.
+async fn wait(
+    container: &Container,
+    docker: &Docker,
+    builder_config: &config::Builder,
+) -> Result<(), SessionError> {
+    match timeout(
+        Duration::from_secs(builder_config.max_build_duration),
+        container.events(docker).next(),
+    )
+    .await
+    .map_err(|_| SessionError::TimedOut)?
+    {
+        Some(Ok(_)) | None => Ok(()),
+        Some(Err(bollard::errors::Error::DockerContainerWaitError { code, .. })) => {
+            Err(SessionError::ContainerExited(code))
+        }
+        Some(Err(err)) => Err(err.into()),
+    }
+}
+
+/// Wait for the provided [`Container`] to finish running and automatically delete it afterwards.
+///
+/// If an error occurs during the deletion process, this function will automatically attempt to close the backing [`Volume`].
+async fn wait_and_remove(
+    container: Container,
+    docker: &Docker,
+    builder_config: &config::Builder,
+) -> Result<Volume, SessionError> {
+    let outcome = wait(&container, docker, builder_config).await;
+
+    let volume = container.remove(docker).await?;
+
+    if let Err(err) = outcome {
+        volume.close().await?;
+        Err(err)
+    } else {
+        Ok(volume)
+    }
+}
+
 /// Handle a single build session.
 ///
-/// Returns a tuple of WASM blob bytes and JSON metadata bytes if the
-/// contract build is successful, [`SessionError`] otherwise.
+/// Returns the backing volume with WASM and metadata artifacts, [`SessionError`] otherwise.
 async fn handle_session<'a>(
     log_sender: UnboundedSender<LogEntry>,
     build_session_id: i64,
-    container: &Container,
+    container: Container,
     docker: &Docker,
-    wasm_buf: &'a mut [u8],
-    metadata_buf: &'a mut [u8],
-) -> Result<(&'a [u8], &'a [u8]), SessionError> {
-    let mut events = container.events(docker);
-
+    builder_config: &config::Builder,
+) -> Result<Volume, SessionError> {
     let logs = tokio_stream::StreamExt::chunks_timeout(
         container.logs(docker).await?,
         10,
@@ -273,6 +485,10 @@ async fn handle_session<'a>(
 
     pin_mut!(logs);
 
+    let wait_future = wait_and_remove(container, docker, builder_config);
+
+    pin_mut!(wait_future);
+
     loop {
         tokio::select! {
             Some(chunk) = logs.next() => {
@@ -290,17 +506,8 @@ async fn handle_session<'a>(
                     error!(%e, "unable to send log entry")
                 }
             },
-            Some(event) = events.next() => match event {
-                Ok(_) => {
-                    let wasm = container.wasm_file(docker, wasm_buf).await?;
-                    let metadata = container.metadata_file(docker, metadata_buf).await?;
-
-                    return Ok((wasm, metadata));
-                },
-                Err(bollard::errors::Error::DockerContainerWaitError { code, .. }) => {
-                    return Err(SessionError::ContainerExited(code));
-                },
-                Err(err) => return Err(err.into())
+            val = &mut wait_future => {
+                return val;
             }
         }
     }
diff --git a/crates/common/Cargo.toml b/crates/common/Cargo.toml
index 3b864de..e5d2f4b 100644
--- a/crates/common/Cargo.toml
+++ b/crates/common/Cargo.toml
@@ -11,17 +11,35 @@ blake2 = "0.10.6"
 byte-unit = { version = "4.0.19", default-features = false }
 figment = { version = "0.10.8", default-features = false, features = ["env", "toml"] }
 futures-util = { version = "0.3.28", optional = true }
-itertools = { version = "0.10.5", optional = true }
 hex = "0.4.3"
-pallet-contracts-primitives = { version = "23.0.0", optional = true }
-parity-scale-codec = { version = "3.5.0", optional = true }
+lru = { version = "0.11.0", optional = true }
 serde = { version = "1.0.162", features = ["derive"] }
-subxt = { version = "0.28.0", optional = true }
 tracing-core = { version = "0.1.30", optional = true }
 tracing-subscriber = { version = "0.3.17", optional = true }
 
+frame-metadata = { version = "15.1", default-features = false, features = ["v14", "serde_full", "decode"], optional = true }
+parity-scale-codec = { version = "3.6.3", optional = true }
+pallet-contracts = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.43", default-features = false, optional = true }
+pallet-contracts-primitives = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.43", default-features = false, optional = true }
+sp-core = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.43", default-features = false, optional = true }
+sp-version = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.43", default-features = false, optional = true }
+substrate-api-client = { git = "https://github.com/scs/substrate-api-client", branch = "polkadot-v0.9.43", default-features = false, features = ["jsonrpsee-client", "contracts-xt"], optional = true }
+
 [features]
 logging = ["tracing-core", "tracing-subscriber"]
 s3 = ["aws-config", "aws-sdk-s3"]
-rpc = ["futures-util", "itertools", "pallet-contracts-primitives", "parity-scale-codec", "subxt"]
+rpc = [
+    "lru",
+    "frame-metadata",
+    "futures-util",
+    "parity-scale-codec",
+    "pallet-contracts",
+    "pallet-contracts-primitives",
+    "sp-core",
+    "sp-version",
+    "substrate-api-client"
+]
 test-utils = []
+
+[dev-dependencies]
+tokio = { version = "1", features = ["rt-multi-thread", "macros"] }
diff --git a/crates/common/artifacts/astar.scale b/crates/common/artifacts/astar.scale
deleted file mode 100644
index a7c93c817be6f6a32f76eb11efec0921946c416d..0000000000000000000000000000000000000000
GIT binary patch
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diff --git a/crates/common/src/config.rs b/crates/common/src/config.rs
index 49ab705..76853f9 100644
--- a/crates/common/src/config.rs
+++ b/crates/common/src/config.rs
@@ -24,6 +24,7 @@ pub struct Server {
     pub address: SocketAddr,
 }
 
+/// Implementation of [`serde`]'s deserializer for [`FromStr`] types.
 #[cfg(feature = "logging")]
 fn deserialize_from_str<'de, T, D>(deserializer: D) -> Result<T, D::Error>
 where
@@ -113,11 +114,11 @@ fn default_metadata_size_limit() -> usize {
 }
 
 fn default_memory_limit() -> i64 {
-    n_gib_bytes!(8) as i64
+    n_gib_bytes!(4) as i64
 }
 
 fn default_memory_swap_limit() -> i64 {
-    n_gib_bytes!(8) as i64
+    n_gib_bytes!(4) as i64
 }
 
 fn default_volume_size() -> String {
@@ -180,9 +181,9 @@ impl Config {
     /// See [`Env`] for more details on how to use environment variables configuration.
     ///
     /// [`Env`]: figment::providers::Env
-    pub fn new() -> Result<Self, figment::Error> {
+    pub fn new(path: Option<PathBuf>) -> Result<Self, figment::Error> {
         Figment::new()
-            .merge(Toml::file("Config.toml"))
+            .merge(Toml::file(path.unwrap_or(PathBuf::from("Config.toml"))))
             .merge(Env::prefixed("CONFIG_").split("_"))
             .extract()
     }
diff --git a/crates/common/src/lib.rs b/crates/common/src/lib.rs
index 6a62ed3..95c6e9b 100644
--- a/crates/common/src/lib.rs
+++ b/crates/common/src/lib.rs
@@ -19,6 +19,5 @@ pub mod logging;
 #[cfg(feature = "s3")]
 pub mod s3;
 
-/// Substrate node RPC utilities.
 #[cfg(feature = "rpc")]
 pub mod rpc;
diff --git a/crates/common/src/logging.rs b/crates/common/src/logging.rs
index 26a6528..614937f 100644
--- a/crates/common/src/logging.rs
+++ b/crates/common/src/logging.rs
@@ -13,6 +13,7 @@ pub fn init(config: &Config) {
 
     let target_filters = Targets::new()
         .with_target("sqlx", Level::WARN)
+        .with_target("substrate_api_client", Level::WARN)
         .with_default(config.logging.level);
 
     tracing_subscriber::registry()
diff --git a/crates/common/src/rpc.rs b/crates/common/src/rpc.rs
new file mode 100644
index 0000000..23207e6
--- /dev/null
+++ b/crates/common/src/rpc.rs
@@ -0,0 +1,374 @@
+//! Substrate node RPC utilities.
+//!
+//! This module provides various methods for communicating with Substrate nodes
+//! that support `pallet-contracts`, allowing you to query data without worrying about
+//! node specifics.
+//!
+//! # Metadata handling
+//!
+//! As node developers may release new updates, we constantly check for metadata version changes
+//! when querying nodes.
+//!
+//! When metadata version change is detected, we fetch new metadata information from a node
+//! while caching it in the process.
+
+use std::{convert::identity, num::NonZeroUsize};
+
+use frame_metadata::RuntimeMetadataPrefixed;
+use futures_util::{
+    stream::{self, try_unfold},
+    Stream, StreamExt, TryStreamExt,
+};
+use lru::LruCache;
+use pallet_contracts::Determinism;
+use pallet_contracts_primitives::ContractExecResult;
+use parity_scale_codec::{Compact, Decode, Encode};
+use sp_core::crypto::AccountId32;
+use sp_version::RuntimeVersion;
+use substrate_api_client::{
+    ac_compose_macros::rpc_params,
+    ac_node_api::{Events, Metadata, StaticEvent},
+    ac_primitives::{
+        Bytes, Config, PolkadotConfig, RpcParams, StorageKey, SubstrateKitchensinkConfig, H256,
+    },
+    rpc::{Request, Subscribe},
+    storage_key, Api, Error, GetChainInfo, GetStorage,
+};
+
+pub use parity_scale_codec;
+pub use sp_core;
+pub use substrate_api_client;
+
+/// Default page size for fetching data by storage key prefix.
+pub const PAGE_SIZE: u32 = 10;
+
+/// WASM blob information received from an RPC node.
+#[derive(Decode)]
+struct PrefabWasmModule {
+    _instruction_weights_version: Compact<u32>,
+    _initial: Compact<u32>,
+    _maximum: Compact<u32>,
+    /// WASM bytecode value.
+    code: Vec<u8>,
+    _determinism: Determinism,
+}
+
+/// Deployed contract information from an RPC node.
+#[derive(Decode)]
+pub struct ContractInfo {
+    _trie_id: Vec<u8>,
+    /// Code hash associated with the current contract.
+    pub code_hash: H256,
+    _storage_bytes: u32,
+    _storage_items: u32,
+    _storage_byte_deposit: u128,
+    _storage_item_deposit: u128,
+    _storage_base_deposit: u128,
+}
+
+/// Get a [`Block`] information for the provided block hash.
+///
+/// If the provided hash is [`None`], the latest block is retrieved.
+///
+/// [`Block`]: Config::Block
+pub async fn block<C: Request>(
+    api: &Api<PolkadotConfig, C>,
+    at: Option<H256>,
+) -> Result<Option<<SubstrateKitchensinkConfig as Config>::Block>, Error> {
+    api.get_block(at).await
+}
+
+/// Get information on the stored code at the provided block hash.
+///
+/// This method returns an asynchronous [`Stream`] of [`StorageKey`] (which can be decoded to receive the code hash value)
+/// and WASM blob bytes.
+pub async fn pristine_code_root<C: Request>(
+    api: &Api<PolkadotConfig, C>,
+    at: H256,
+) -> Result<impl Stream<Item = Result<Vec<(StorageKey, Vec<u8>)>, Error>> + '_, Error> {
+    let prefix = api
+        .get_storage_map_key_prefix("Contracts", "CodeStorage")
+        .await?;
+
+    Ok(paged_key_values::<_, PrefabWasmModule, _, _>(prefix, api, at, |module| module.code).await)
+}
+
+/// Get WASM blob for the provided code hash at the provided block hash.
+///
+/// This method returns WASM blob bytes if present in the provided block.
+pub async fn pristine_code<C: Request>(
+    api: &Api<PolkadotConfig, C>,
+    at: H256,
+    code_hash: H256,
+) -> Result<Option<Vec<u8>>, Error> {
+    api.get_storage_map::<_, PrefabWasmModule>("Contracts", "CodeStorage", code_hash, Some(at))
+        .await
+        .map(|val| val.map(|module| module.code))
+}
+
+/// Get information on all available contracts at the provided block hash.
+///
+/// This method returns an asynchronous [`Stream`] of [`StorageKey`] (which can be decoded to receive the contract address value)
+/// and associated contract information.
+pub async fn contract_info_of_root<C: Request + Send + Sync>(
+    api: &Api<PolkadotConfig, C>,
+    at: H256,
+) -> Result<impl Stream<Item = Result<Vec<(StorageKey, ContractInfo)>, Error>> + '_, Error> {
+    let prefix = api
+        .get_storage_map_key_prefix("Contracts", "ContractInfoOf")
+        .await?;
+
+    Ok(paged_key_values(prefix, api, at, identity).await)
+}
+
+/// Get information about the specific contract at the provided block hash.
+///
+/// This method returns associated contract information if present in the provided block.
+pub async fn contract_info_of<C: Request>(
+    api: &Api<PolkadotConfig, C>,
+    at: H256,
+    account_id: &AccountId32,
+) -> Result<Option<ContractInfo>, Error> {
+    api.get_storage_map("Contracts", "ContractInfoOf", account_id, Some(at))
+        .await
+}
+
+/// Get UNIX timestamp in milliseconds for the provided block hash.
+pub async fn block_timestamp_millis<C: Request>(
+    api: &Api<PolkadotConfig, C>,
+    at: H256,
+) -> Result<u64, Error> {
+    Ok(api
+        .get_storage("Timestamp", "Now", Some(at))
+        .await?
+        .expect("timestamp is always expected to be present"))
+}
+
+/// Call the contract with the provided [`AccountId32`] and raw call data.
+///
+/// Provided raw call data should match the ABI of the contract.
+pub async fn call_contract<C: Request + Subscribe>(
+    api: &Api<PolkadotConfig, C>,
+    contract: AccountId32,
+    data: Vec<u8>,
+) -> Result<ContractExecResult<<PolkadotConfig as Config>::Balance, ()>, Error> {
+    #[derive(Encode)]
+    pub struct CallRequest {
+        origin: AccountId32,
+        dest: AccountId32,
+        value: u128,
+        gas_limit: Option<u128>,
+        storage_deposit_limit: Option<u128>,
+        input_data: Vec<u8>,
+    }
+
+    let request = CallRequest {
+        // Dummy address
+        origin: contract.clone(),
+        dest: contract,
+        value: 0,
+        gas_limit: None,
+        storage_deposit_limit: None,
+        input_data: data,
+    };
+
+    let mut params = RpcParams::new();
+
+    params
+        .insert("ContractsApi_call")
+        .map_err(|val| Error::Other(Box::new(val)))?;
+    params
+        .insert(format!("0x{}", hex::encode(request.encode())))
+        .map_err(|val| Error::Other(Box::new(val)))?;
+
+    let bytes: String = api.client().request("state_call", params).await?;
+
+    let result = ContractExecResult::decode(
+        &mut &*hex::decode(bytes.strip_prefix("0x").unwrap_or(&bytes))
+            .map_err(|val| Error::Other(Box::new(val)))?,
+    )?;
+
+    Ok(result)
+}
+
+/// Node metadata cache.
+#[derive(Debug)]
+pub struct MetadataCache {
+    cache: LruCache<(u32, u32, u32), Metadata>,
+}
+
+impl MetadataCache {
+    /// Create new [`MetadataCache`].
+    pub fn new() -> Self {
+        Default::default()
+    }
+
+    /// Get metadata associated with the provided block hash.
+    ///
+    /// This method requests node runtime version corresponding to the provided block,
+    /// and either fetches it from node or retrieves from cache.
+    pub async fn metadata<C: Request>(
+        &mut self,
+        api: &Api<PolkadotConfig, C>,
+        at: H256,
+    ) -> Result<Metadata, Error> {
+        let RuntimeVersion {
+            authoring_version,
+            spec_version,
+            impl_version,
+            ..
+        } = api
+            .client()
+            .request("state_getRuntimeVersion", rpc_params![at])
+            .await?;
+
+        if let Some(metadata) = self
+            .cache
+            .get(&(authoring_version, spec_version, impl_version))
+        {
+            Ok(metadata.clone())
+        } else {
+            let metadata_bytes: Bytes = api
+                .client()
+                .request("state_getMetadata", rpc_params![Some(at)])
+                .await?;
+
+            let runtime_metadata =
+                RuntimeMetadataPrefixed::decode(&mut metadata_bytes.0.as_slice())?;
+            let metadata: Metadata = runtime_metadata.try_into()?;
+
+            self.cache.push(
+                (authoring_version, spec_version, impl_version),
+                metadata.clone(),
+            );
+
+            Ok(metadata)
+        }
+    }
+}
+
+impl Default for MetadataCache {
+    fn default() -> Self {
+        Self {
+            cache: LruCache::new(NonZeroUsize::new(5).unwrap()),
+        }
+    }
+}
+
+/// Fetch events associated with the provided block hash.
+///
+/// Since events layout may differ between different runtime upgrades,
+/// this method accepts [`MetadataCache`] to correctly query node for the corresponding metadata.
+pub async fn events<C: Request>(
+    api: &Api<PolkadotConfig, C>,
+    at: H256,
+    metadata_cache: &mut MetadataCache,
+) -> Result<Events<H256>, Error> {
+    let key = storage_key("System", "Events");
+    let event_bytes = api
+        .get_opaque_storage_by_key(key, Some(at))
+        .await?
+        .ok_or(Error::BlockNotFound)?;
+
+    Ok(Events::new(
+        metadata_cache.metadata(api, at).await?,
+        Default::default(),
+        event_bytes,
+    ))
+}
+
+/// Contract instantiation event.
+#[derive(Decode)]
+pub struct Instantiated {
+    /// [`AccountId32`] value of the deployer.
+    pub deployer: AccountId32,
+
+    /// [`AccountId32`] value of the contract itself.
+    pub contract: AccountId32,
+}
+
+impl StaticEvent for Instantiated {
+    const PALLET: &'static str = "Contracts";
+    const EVENT: &'static str = "Instantiated";
+}
+
+/// WASM code upload event.
+#[derive(Decode)]
+pub struct CodeStored {
+    /// Code hash value of the uploaded WASM code.
+    pub code_hash: H256,
+}
+
+impl StaticEvent for CodeStored {
+    const PALLET: &'static str = "Contracts";
+    const EVENT: &'static str = "CodeStored";
+}
+
+/// Associated code hash of a contract was changed.
+#[derive(Decode)]
+pub struct ContractCodeUpdated {
+    /// [`AccountId32`] value of the associated contract.
+    pub contract: AccountId32,
+
+    /// New code hash value associated with the current contract.
+    pub new_code_hash: H256,
+
+    /// Previous code hash value.
+    pub old_code_hash: H256,
+}
+
+impl StaticEvent for ContractCodeUpdated {
+    const PALLET: &'static str = "Contracts";
+    const EVENT: &'static str = "ContractCodeUpdated";
+}
+
+/// Contract termination event.
+#[derive(Decode)]
+pub struct Terminated {
+    /// [`AccountId32`] value of a contract that got terminated.
+    pub contract: AccountId32,
+    _beneficiary: AccountId32,
+}
+
+impl StaticEvent for Terminated {
+    const PALLET: &'static str = "Contracts";
+    const EVENT: &'static str = "Terminated";
+}
+
+// Get storage keys and values with the provided prefix, mapping values in process.
+async fn paged_key_values<C: Request, V: Decode, T, F: FnMut(V) -> T + 'static>(
+    prefix: StorageKey,
+    api: &Api<PolkadotConfig, C>,
+    at: H256,
+    map: F,
+) -> impl Stream<Item = Result<Vec<(StorageKey, T)>, Error>> + '_ {
+    try_unfold(
+        (None, prefix, map),
+        move |(start_key, prefix, mut map)| async move {
+            let storage_keys = api
+                .get_storage_keys_paged(Some(prefix.clone()), PAGE_SIZE, start_key, Some(at))
+                .await?;
+
+            if storage_keys.is_empty() {
+                return Ok(None);
+            }
+
+            let start_key = storage_keys.last().cloned();
+
+            let values = stream::iter(storage_keys)
+                .then(move |storage_key| async move {
+                    let value = api
+                        .get_storage_by_key(storage_key.clone(), Some(at))
+                        .await?
+                        .expect("unable to find value corresponding to the provided storage key");
+
+                    Result::<_, Error>::Ok((storage_key, value))
+                })
+                .map_ok(|(key, val)| (key, map(val)))
+                .try_collect()
+                .await?;
+
+            Result::<_, Error>::Ok(Some((values, (start_key, prefix, map))))
+        },
+    )
+}
diff --git a/crates/common/src/rpc/mod.rs b/crates/common/src/rpc/mod.rs
deleted file mode 100644
index 549ef2b..0000000
--- a/crates/common/src/rpc/mod.rs
+++ /dev/null
@@ -1,369 +0,0 @@
-//! Schema abstraction over Substrate node RPC.
-//!
-//! # Schemas
-//!
-//! By introducing the concept of schemas we can utilize [`subxt`]'s typed
-//! RPC bindings while simultaneously providing other crates with abstraction
-//! to communicate with different nodes over a unified API.
-//!
-//! The core component of this module is the `Schema` enum, which allows
-//! users to pick a preferred schema for communication. Be aware, that a schema from one
-//! network may be supported by another network, even though their names are different.
-//!
-//! After creating an instance of `Schema`, you may use various methods such as
-//! `Schema::block`, `Schema::pristine_code`, etc. to receive relevant information
-//! without worrying about node specifics.
-
-/// Supported schemas.
-pub mod schemas;
-
-use std::{
-    fmt::{self, Display, Formatter},
-    marker::PhantomData,
-    pin::Pin,
-    str::FromStr,
-};
-
-use futures_util::{stream::try_unfold, Stream, TryStreamExt};
-use itertools::Itertools;
-use pallet_contracts_primitives::ContractExecResult;
-use parity_scale_codec::{Decode, Encode};
-use subxt::{
-    blocks::Block,
-    client::OnlineClientT,
-    events::Events,
-    metadata::DecodeWithMetadata,
-    storage::{KeyIter, StorageKey},
-    utils::{AccountId32, H256},
-    Config, Error,
-};
-
-pub use parity_scale_codec;
-pub use subxt;
-
-/// Default page size for fetching data with [`subxt`].
-pub const PAGE_SIZE: u32 = 10;
-
-/// Substrate node RPC schema.
-pub enum Schema<T> {
-    /// Astar schema, which can be initialized from an "astar" string.
-    Astar,
-
-    #[doc(hidden)]
-    __Config(PhantomData<T>),
-}
-
-impl<T> Copy for Schema<T> {}
-
-impl<T> Clone for Schema<T> {
-    fn clone(&self) -> Self {
-        match self {
-            Self::Astar => Self::Astar,
-            _ => unreachable!(),
-        }
-    }
-}
-
-impl<T> FromStr for Schema<T> {
-    type Err = InvalidSchema;
-
-    fn from_str(s: &str) -> Result<Self, Self::Err> {
-        match s {
-            "astar" => Ok(Self::Astar),
-            _ => Err(InvalidSchema),
-        }
-    }
-}
-
-/// An error that indicates that an invalid schema was provided.
-#[derive(Debug)]
-pub struct InvalidSchema;
-
-impl Display for InvalidSchema {
-    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
-        write!(f, "invalid schema")
-    }
-}
-
-impl std::error::Error for InvalidSchema {}
-
-/// Macro utilities to generate schema mappers.
-///
-/// See methods below for usage demonstration.
-macro_rules! schema_map {
-    (fetch $self:ident, $client:ident, $at:ident, $($network:ident, $schema:ident => $address:ident, $mapper:expr, [$($val:expr),+]),+) => {
-        match $self {
-            $(Schema::$network => {
-                let address = schemas::$schema::storage()
-                    .contracts()
-                    .$address($($val),+);
-
-                $client.storage()
-                    .at($at)
-                    .fetch(&address)
-                    .await?
-                    .map($mapper)
-            }),+
-            _ => unreachable!()
-        }
-    };
-
-    (stream $self:ident, $client:ident, $at:ident, $($network:ident, $schema:ident => $address:ident, $mapper:expr),+) => {
-        match $self {
-            $(Schema::$network => {
-                let address = schemas::$schema::storage()
-                    .contracts()
-                    .$address();
-
-                Box::pin(
-                    key_iter_to_stream(
-                        $client.storage()
-                            .at($at)
-                            .iter(address, PAGE_SIZE)
-                            .await?
-                    )
-                    .map_ok($mapper),
-                )
-            }),+
-            _ => unreachable!()
-        }
-    };
-}
-
-impl<T: Config + Send + Sync> Schema<T> {
-    /// Get a [`Block`] information for the provided block hash.
-    ///
-    /// If the provided hash is [`None`], the latest block is retrieved.
-    pub async fn block<C: OnlineClientT<T>>(
-        &self,
-        client: &C,
-        at: Option<T::Hash>,
-    ) -> Result<Block<T, C>, Error> {
-        if let Some(hash) = at {
-            client.blocks().at(hash).await
-        } else {
-            client.blocks().at_latest().await
-        }
-    }
-
-    /// Get information on the stored code at the provided block hash.
-    pub async fn pristine_code_root<C: OnlineClientT<T>>(
-        &self,
-        client: &C,
-        at: T::Hash,
-    ) -> Result<Pin<Box<dyn Stream<Item = Result<(StorageKey, Vec<u8>), Error>> + Send>>, Error>
-    {
-        Ok(schema_map!(
-            stream self, client, at,
-            Astar, astar => pristine_code_root, |(key, wasm)| (key, wasm.0)
-        ))
-    }
-
-    /// Get WASM blob for the provided code hash at the provided block hash.
-    pub async fn pristine_code<C: OnlineClientT<T>>(
-        &self,
-        client: &C,
-        at: T::Hash,
-        code_hash: &H256,
-    ) -> Result<Option<Vec<u8>>, Error> {
-        Ok(schema_map!(
-            fetch self, client, at,
-            Astar, astar => pristine_code, |wasm| wasm.0, [code_hash]
-        ))
-    }
-
-    /// Get information on all available contracts at the provided block hash.
-    pub async fn contract_info_of_root<C: OnlineClientT<T>>(
-        &self,
-        client: &C,
-        at: T::Hash,
-    ) -> Result<Pin<Box<dyn Stream<Item = Result<(StorageKey, ContractInfo), Error>> + Send>>, Error>
-    {
-        Ok(schema_map!(
-            stream self, client, at,
-            Astar, astar => contract_info_of_root, |(key, info)| (key, ContractInfo { code_hash: info.code_hash })
-        ))
-    }
-
-    /// Get information about the specific contract at the provided block hash.
-    pub async fn contract_info_of<C: OnlineClientT<T>>(
-        &self,
-        client: &C,
-        at: T::Hash,
-        account_id: &AccountId32,
-    ) -> Result<Option<ContractInfo>, Error> {
-        Ok(schema_map!(
-            fetch self, client, at,
-            Astar, astar => contract_info_of, |info| ContractInfo { code_hash: info.code_hash }, [account_id]
-        ))
-    }
-
-    /// Get UNIX timestamp in milliseconds for the provided block hash.
-    pub async fn block_timestamp_millis<C: OnlineClientT<T>>(
-        &self,
-        client: &C,
-        at: T::Hash,
-    ) -> Result<u64, Error> {
-        Ok(match self {
-            Schema::Astar => client
-                .storage()
-                .at(at)
-                .fetch(&schemas::astar::storage().timestamp().now())
-                .await?
-                .unwrap_or(0),
-            _ => unreachable!(),
-        })
-    }
-
-    /// Call the contract with the provided [`AccountId32`] and raw call data.
-    ///
-    /// Provided raw call data should match the ABI of the contract.
-    pub async fn call_contract<C: OnlineClientT<T>>(
-        &self,
-        client: &C,
-        contract: AccountId32,
-        data: Vec<u8>,
-    ) -> Result<ContractExecResult<u128>, Error> {
-        #[derive(Encode)]
-        pub struct CallRequest {
-            origin: AccountId32,
-            dest: AccountId32,
-            value: u128,
-            gas_limit: Option<u128>,
-            storage_deposit_limit: Option<u128>,
-            input_data: Vec<u8>,
-        }
-
-        let request = CallRequest {
-            // Dummy address
-            origin: contract.clone(),
-            dest: contract,
-            value: 0,
-            gas_limit: None,
-            storage_deposit_limit: None,
-            input_data: data,
-        };
-
-        let response = client
-            .rpc()
-            .state_call("ContractsApi_call", Some(&request.encode()), None)
-            .await?;
-
-        Ok(ContractExecResult::decode(&mut &*response.0)?)
-    }
-
-    /// Map schema-specific event types into generic contract-related events.
-    ///
-    /// This method will return only the information about the events related to
-    /// the passed `needle` argument. You can use [`Iterator::filter_map`] to filter
-    /// returned events after calling this method.
-    pub fn events<'e>(
-        &self,
-        events: &'e Events<T>,
-        needle: ContractEvent,
-    ) -> Box<dyn Iterator<Item = Result<ContractEventData, Error>> + 'e> {
-        macro_rules! boxed_events {
-            ($($network:ident => $schema:ident, [$($event:ident => $mapper:expr),+]),+) => {
-                match (self, needle) {
-                    $($((Schema::$network, ContractEvent::$event) => {
-                        Box::new(
-                            events
-                                .find::<schemas::$schema::contracts::events::$event>()
-                                .map_ok($mapper)
-                        )
-                    }),+),+
-                    _ => unreachable!()
-                }
-            };
-        }
-
-        boxed_events!(
-            Astar => astar, [
-                CodeStored => |event| ContractEventData::CodeStored {
-                    code_hash: event.code_hash,
-                },
-                Instantiated => |event| ContractEventData::Instantiated {
-                    contract: event.contract,
-                    deployer: event.deployer,
-                },
-                ContractCodeUpdated => |event| ContractEventData::ContractCodeUpdated {
-                    contract: event.contract,
-                    new_code_hash: event.new_code_hash,
-                },
-                Terminated => |event| ContractEventData::Terminated {
-                    contract: event.contract
-                }
-            ]
-        )
-    }
-}
-
-/// Generic contract info.
-pub struct ContractInfo {
-    /// Code hash used for the contract.
-    pub code_hash: H256,
-}
-
-/// Generic contract events.
-///
-/// This enum is used to filter relevant events using [`Schema::events`] method.
-pub enum ContractEvent {
-    /// Search for WASM blob uploads.
-    CodeStored,
-
-    /// Search for contract instantiations.
-    Instantiated,
-
-    /// Search for contract code hash updates.
-    ContractCodeUpdated,
-
-    /// Search for contract terminations.
-    Terminated,
-}
-
-/// Contract event data.
-pub enum ContractEventData {
-    /// New WASM blob was uploaded.
-    CodeStored {
-        /// Code hash of the uploaded WASM blob.
-        code_hash: H256,
-    },
-
-    /// New contract was instantiated.
-    Instantiated {
-        /// Contract account id.
-        contract: AccountId32,
-
-        /// Account id of an entity that deployed the contract.
-        deployer: AccountId32,
-    },
-
-    /// Contract hash was updated.
-    ContractCodeUpdated {
-        /// Related contract account id.
-        contract: AccountId32,
-
-        /// New code hash for the related contract.
-        new_code_hash: H256,
-    },
-
-    /// Contract was terminated.
-    Terminated {
-        /// Account id of a terminated contract.
-        contract: AccountId32,
-    },
-}
-
-/// Transform a [`KeyIter`] into an asynchronous [`Stream`].
-fn key_iter_to_stream<C, Client, ReturnTy>(
-    key_iter: KeyIter<C, Client, ReturnTy>,
-) -> impl Stream<Item = Result<(StorageKey, ReturnTy), Error>>
-where
-    C: Config,
-    Client: OnlineClientT<C>,
-    ReturnTy: DecodeWithMetadata,
-{
-    try_unfold(key_iter, |mut state| async move {
-        state.next().await.map(|val| val.map(|val| (val, state)))
-    })
-}
diff --git a/crates/common/src/rpc/schemas.rs b/crates/common/src/rpc/schemas.rs
deleted file mode 100644
index 5539f9f..0000000
--- a/crates/common/src/rpc/schemas.rs
+++ /dev/null
@@ -1,2 +0,0 @@
-#[subxt::subxt(runtime_metadata_path = "artifacts/astar.scale")]
-pub mod astar {}
diff --git a/crates/db/src/build_session.rs b/crates/db/src/build_session.rs
index 9301d34..a46fb1e 100644
--- a/crates/db/src/build_session.rs
+++ b/crates/db/src/build_session.rs
@@ -33,9 +33,6 @@ pub struct Model {
     /// `cargo-contract` tooling version.
     pub cargo_contract_version: String,
 
-    /// Rust tooling version.
-    pub rustc_version: String,
-
     /// WASM blob code hash, if the contract build was successful.
     pub code_hash: Option<Vec<u8>>,
 
@@ -118,6 +115,5 @@ impl ActiveModelBehavior for ActiveModel {}
 pub struct ProcessedBuildSession {
     pub id: i64,
     pub source_code_id: i64,
-    pub rustc_version: String,
     pub cargo_contract_version: String,
 }
diff --git a/crates/db/src/node.rs b/crates/db/src/node.rs
index 1aec7a5..4fe0481 100644
--- a/crates/db/src/node.rs
+++ b/crates/db/src/node.rs
@@ -1,7 +1,7 @@
 //! Supported network instance.
 //!
 //! This model represents a single network with information about an RPC node,
-//! its schema, last confirmed block for event client and optionally a payment contract
+//! last confirmed block for event client and optionally a payment contract
 //! that can be used to acquire membership fees.
 
 use sea_orm::entity::prelude::*;
@@ -19,9 +19,6 @@ pub struct Model {
     /// RPC node WebSocket URL.
     pub url: String,
 
-    /// Node schema used to communicate with an RPC node.
-    pub schema: String,
-
     /// Payment contract address.
     ///
     /// [`None`] if node doesn't provide such a contract.
diff --git a/crates/event_client/src/cli.rs b/crates/event_client/src/cli.rs
index 4d4daec..b18aee3 100644
--- a/crates/event_client/src/cli.rs
+++ b/crates/event_client/src/cli.rs
@@ -1,8 +1,17 @@
+/// `initialize` subcommand.
 mod initialize;
+
+/// `traverse` subcommand.
 mod traverse;
+
+/// `update_contract` subcommand.
 mod update_contract;
+
+/// `watch` subcommand.
 mod watch;
 
+use std::path::PathBuf;
+
 use clap::{Parser, Subcommand};
 
 pub use initialize::initialize;
@@ -17,6 +26,10 @@ pub(crate) struct Cli {
     /// Selected subcommand.
     #[command(subcommand)]
     pub command: Command,
+
+    /// Path to configuration file.
+    #[clap(short, long, value_parser)]
+    pub config: Option<PathBuf>,
 }
 
 /// Supported subcommands.
@@ -30,16 +43,16 @@ pub(crate) enum Command {
         /// Node WebSocket URL
         url: String,
 
-        /// Schema name, that identifies the node's ABI.
-        schema: String,
-
         /// Address of a contract that accepts membership payments.
         #[clap(long)]
         payment_address: Option<String>,
     },
 
     /// Traverse old blocks of the provided node for old events.
-    Traverse { name: String },
+    Traverse {
+        /// Node name.
+        name: String,
+    },
 
     /// Update payment contract address.
     UpdateContract {
@@ -51,5 +64,8 @@ pub(crate) enum Command {
     },
 
     /// Watch node for new blocks to discover contract events.
-    Watch { name: String },
+    Watch {
+        /// Node name.
+        name: String,
+    },
 }
diff --git a/crates/event_client/src/cli/initialize.rs b/crates/event_client/src/cli/initialize.rs
index f86e816..3f6d9b8 100644
--- a/crates/event_client/src/cli/initialize.rs
+++ b/crates/event_client/src/cli/initialize.rs
@@ -1,15 +1,16 @@
-use std::str::FromStr;
+use std::{pin::pin, str::FromStr};
 
 use common::rpc::{
-    subxt::{self, utils::AccountId32, OnlineClient, PolkadotConfig},
-    InvalidSchema, Schema, PAGE_SIZE,
+    self,
+    sp_core::crypto::AccountId32,
+    substrate_api_client::{self, ac_primitives::Block, rpc::JsonrpseeClient, Api},
 };
 use db::{
     code, contract, node, sea_query::OnConflict, ActiveValue, DatabaseConnection, DbErr,
     EntityTrait, TransactionErrorExt, TransactionTrait,
 };
 use derive_more::{Display, Error, From};
-use futures_util::{TryFutureExt, TryStreamExt};
+use futures_util::TryStreamExt;
 
 use crate::utils::{extract_code_hash, extract_twox_account_id};
 
@@ -20,10 +21,8 @@ pub enum InitializeError {
     DatabaseError(DbErr),
 
     /// Substrate RPC-related error.
-    RpcError(subxt::Error),
-
-    /// User provided invalid schema name.
-    Schema(InvalidSchema),
+    #[display(fmt = "rpc error: {:?}", _0)]
+    RpcError(#[error(ignore)] substrate_api_client::Error),
 
     /// Invalid payment contract account id was provided.
     #[display(fmt = "invalid account id for payment contract")]
@@ -46,42 +45,38 @@ pub async fn initialize(
     database: DatabaseConnection,
     name: String,
     url: String,
-    schema_name: String,
     payment_address: Option<String>,
 ) -> Result<(), InitializeError> {
-    let api = OnlineClient::<PolkadotConfig>::from_url(&url).await?;
+    let client = JsonrpseeClient::new(&url).map_err(substrate_api_client::Error::RpcClient)?;
+    let api = Api::new(client).await?;
 
-    let schema = Schema::from_str(&schema_name)?;
+    let latest_block = rpc::block(&api, None)
+        .await?
+        .expect("at least one block is expected");
 
-    let latest_block = schema.block(&api, None).await?;
+    let block_hash = latest_block.hash();
 
     let payment_address = payment_address
         .as_deref()
         .map(AccountId32::from_str)
         .transpose()
         .map_err(|_| InitializeError::InvalidPaymentAddress)?
-        .map(|addr| addr.0.to_vec());
-
-    // Attempt to add all the information in a single transaction.
-    //
-    // Confirmed block value is set to the value of latest block number
-    // we acquired earlier.
-    database
-        .transaction(|txn| {
+        .map(|addr| <[u8; 32]>::from(addr).to_vec());
+
+    let node = database
+        .transaction::<_, _, InitializeError>(|txn| {
             Box::pin(async move {
                 let node = node::Entity::insert(node::ActiveModel {
                     name: ActiveValue::Set(name),
                     url: ActiveValue::Set(url),
-                    schema: ActiveValue::Set(schema_name),
                     payment_contract: ActiveValue::Set(payment_address),
-                    confirmed_block: ActiveValue::Set(latest_block.number() as i64),
+                    confirmed_block: ActiveValue::Set(latest_block.header.number as i64),
                     ..Default::default()
                 })
                 .on_conflict(
                     OnConflict::column(node::Column::Name)
                         .update_columns([
                             node::Column::Url,
-                            node::Column::Schema,
                             node::Column::PaymentContract,
                             node::Column::ConfirmedBlock,
                         ])
@@ -90,62 +85,67 @@ pub async fn initialize(
                 .exec_with_returning(txn)
                 .await?;
 
-                schema
-                    .pristine_code_root(&api, latest_block.hash())
-                    .await?
-                    .err_into::<InitializeError>()
-                    .map_ok(|(key, wasm)| code::ActiveModel {
-                        hash: ActiveValue::Set(extract_code_hash(key)),
-                        code: ActiveValue::Set(wasm),
-                    })
-                    .try_chunks(PAGE_SIZE as usize)
-                    .map_err(|err| err.1)
-                    .and_then(|chunk| {
-                        code::Entity::insert_many(chunk)
-                            .on_conflict(
-                                OnConflict::column(code::Column::Hash)
-                                    .do_nothing()
-                                    .to_owned(),
-                            )
-                            .exec_without_returning(txn)
-                            .map_ok(|_| ())
-                            .err_into()
-                    })
-                    .try_collect()
+                Ok(node)
+            })
+        })
+        .await
+        .into_raw_result()?;
+
+    let mut wasm_blobs = pin!(rpc::pristine_code_root(&api, block_hash).await?);
+
+    while let Some(chunk) = wasm_blobs.try_next().await? {
+        database
+            .transaction::<_, _, InitializeError>(|txn| {
+                Box::pin(async move {
+                    code::Entity::insert_many(chunk.into_iter().map(|(key, wasm)| {
+                        code::ActiveModel {
+                            hash: ActiveValue::Set(extract_code_hash(key)),
+                            code: ActiveValue::Set(wasm),
+                        }
+                    }))
+                    .on_conflict(
+                        OnConflict::column(code::Column::Hash)
+                            .do_nothing()
+                            .to_owned(),
+                    )
+                    .exec_without_returning(txn)
                     .await?;
 
-                schema
-                    .contract_info_of_root(&api, latest_block.hash())
-                    .await?
-                    .err_into::<InitializeError>()
-                    .map_ok(|(key, contract)| contract::ActiveModel {
-                        code_hash: ActiveValue::Set(contract.code_hash.0.to_vec()),
-                        node_id: ActiveValue::Set(node.id),
-                        address: ActiveValue::Set(extract_twox_account_id(key)),
-                        ..Default::default()
-                    })
-                    .try_chunks(PAGE_SIZE as usize)
-                    .map_err(|err| err.1)
-                    .and_then(|chunk| {
-                        contract::Entity::insert_many(chunk)
-                            .on_conflict(
-                                OnConflict::columns([
-                                    contract::Column::NodeId,
-                                    contract::Column::Address,
-                                ])
-                                .do_nothing()
-                                .to_owned(),
-                            )
-                            .exec_without_returning(txn)
-                            .map_ok(|_| ())
-                            .err_into()
-                    })
-                    .try_collect()
+                    Ok(())
+                })
+            })
+            .await
+            .into_raw_result()?;
+    }
+
+    let mut contracts = pin!(rpc::contract_info_of_root(&api, block_hash).await?);
+
+    while let Some(chunk) = contracts.try_next().await? {
+        database
+            .transaction::<_, _, InitializeError>(|txn| {
+                Box::pin(async move {
+                    contract::Entity::insert_many(chunk.into_iter().map(|(key, contract)| {
+                        contract::ActiveModel {
+                            code_hash: ActiveValue::Set(contract.code_hash.0.to_vec()),
+                            node_id: ActiveValue::Set(node.id),
+                            address: ActiveValue::Set(extract_twox_account_id(key)),
+                            ..Default::default()
+                        }
+                    }))
+                    .on_conflict(
+                        OnConflict::columns([contract::Column::NodeId, contract::Column::Address])
+                            .do_nothing()
+                            .to_owned(),
+                    )
+                    .exec_without_returning(txn)
                     .await?;
 
-                Ok(())
+                    Ok(())
+                })
             })
-        })
-        .await
-        .into_raw_result()
+            .await
+            .into_raw_result()?;
+    }
+
+    Ok(())
 }
diff --git a/crates/event_client/src/cli/traverse.rs b/crates/event_client/src/cli/traverse.rs
index da64609..34c2730 100644
--- a/crates/event_client/src/cli/traverse.rs
+++ b/crates/event_client/src/cli/traverse.rs
@@ -1,8 +1,13 @@
-use std::str::FromStr;
-
 use common::rpc::{
-    subxt::{self, Config, Error, OnlineClient, PolkadotConfig},
-    ContractEvent, ContractEventData, InvalidSchema, Schema,
+    self,
+    sp_core::{ByteArray, H256},
+    substrate_api_client::{
+        self,
+        ac_primitives::PolkadotConfig,
+        rpc::{JsonrpseeClient, Request},
+        Api, Error,
+    },
+    Instantiated, MetadataCache,
 };
 use db::{
     contract, node, ColumnTrait, DatabaseConnection, DbErr, EntityTrait, QueryFilter,
@@ -21,10 +26,8 @@ pub enum TraverseError {
     DatabaseError(DbErr),
 
     /// Substrate RPC-related error.
-    RpcError(subxt::Error),
-
-    /// User provided invalid schema name.
-    Schema(InvalidSchema),
+    #[display(fmt = "rpc error: {:?}", _0)]
+    RpcError(#[error(ignore)] substrate_api_client::Error),
 
     /// The provided node name is incorrect.
     #[display(fmt = "node not found")]
@@ -50,24 +53,30 @@ pub async fn traverse(database: DatabaseConnection, name: String) -> Result<(),
         .await?
         .ok_or(TraverseError::NodeNotFound)?;
 
-    let api = OnlineClient::<PolkadotConfig>::from_url(&node.url).await?;
-
-    let schema = Schema::from_str(&node.schema)?;
+    let client = JsonrpseeClient::new(&node.url).map_err(substrate_api_client::Error::RpcClient)?;
+    let api = Api::new(client).await?;
 
-    let stream = block_mapping_stream(0..=node.confirmed_block as u64, &api);
+    let stream = block_mapping_stream(0..=node.confirmed_block as u32, &api);
 
     pin_mut!(stream);
 
+    let mut metadata_cache = MetadataCache::new();
+
     while let Some((_, block_hash)) = stream.try_next().await? {
-        if let Ok(block_data) = parse_block(&api, &schema, block_hash).await {
+        if let Ok(block_data) = parse_block(&api, block_hash, &mut metadata_cache).await {
             database
                 .transaction::<_, _, TraverseError>(|txn| {
                     Box::pin(async move {
-                        for (contract, deployer) in block_data.instantiations {
+                        for instantiation in block_data.instantiations {
                             contract::Entity::update_many()
-                                .col_expr(contract::Column::Owner, (&deployer[..]).into())
+                                .col_expr(
+                                    contract::Column::Owner,
+                                    (instantiation.deployer.as_slice()).into(),
+                                )
                                 .filter(contract::Column::NodeId.eq(node.id))
-                                .filter(contract::Column::Address.eq(&contract[..]))
+                                .filter(
+                                    contract::Column::Address.eq(instantiation.contract.as_slice()),
+                                )
                                 .exec(txn)
                                 .await?;
                         }
@@ -86,26 +95,18 @@ pub async fn traverse(database: DatabaseConnection, name: String) -> Result<(),
 /// Parsed block data.
 struct BlockData {
     /// Smart contract instantiations found in block.
-    instantiations: Vec<([u8; 32], [u8; 32])>,
+    instantiations: Vec<Instantiated>,
 }
 
-/// Attempt to parse block associated with the provided block hash using the provided schema.
-async fn parse_block<T: Config + Send + Sync>(
-    api: &OnlineClient<T>,
-    schema: &Schema<T>,
-    block_hash: T::Hash,
+/// Attempt to parse block associated with the provided block hash.
+async fn parse_block<C: Request>(
+    api: &Api<PolkadotConfig, C>,
+    block_hash: H256,
+    metadata_cache: &mut MetadataCache,
 ) -> Result<BlockData, Error> {
-    let events = schema.block(api, Some(block_hash)).await?.events().await?;
-
-    let instantiations = schema
-        .events(&events, ContractEvent::Instantiated)
-        .filter_map_ok(|event| match event {
-            ContractEventData::Instantiated { contract, deployer } => {
-                Some((contract.0, deployer.0))
-            }
-            _ => None,
-        })
-        .try_collect()?;
+    let events = rpc::events(api, block_hash, metadata_cache).await?;
+
+    let instantiations = events.find().try_collect()?;
 
     Ok(BlockData { instantiations })
 }
diff --git a/crates/event_client/src/cli/update_contract.rs b/crates/event_client/src/cli/update_contract.rs
index 9edcd5f..a51cb8d 100644
--- a/crates/event_client/src/cli/update_contract.rs
+++ b/crates/event_client/src/cli/update_contract.rs
@@ -1,6 +1,6 @@
 use std::str::FromStr;
 
-use common::rpc::subxt::utils::AccountId32;
+use common::rpc::sp_core::crypto::AccountId32;
 use db::{
     node, ColumnTrait, DatabaseConnection, DbErr, EntityTrait, QueryFilter, TransactionErrorExt,
     TransactionTrait,
@@ -36,7 +36,7 @@ pub async fn update_contract(
         .map(AccountId32::from_str)
         .transpose()
         .map_err(|_| UpdateContractError::InvalidPaymentAddress)?
-        .map(|addr| addr.0.to_vec());
+        .map(|addr| <[u8; 32]>::from(addr).to_vec());
 
     database
         .transaction(|txn| {
diff --git a/crates/event_client/src/cli/watch.rs b/crates/event_client/src/cli/watch.rs
index 878fe3d..0ef6af8 100644
--- a/crates/event_client/src/cli/watch.rs
+++ b/crates/event_client/src/cli/watch.rs
@@ -1,11 +1,15 @@
-use std::{
-    future::{self, ready},
-    str::FromStr,
-};
+use std::{future::ready, iter};
 
 use common::rpc::{
-    subxt::{self, blocks::Block, config::Header, Config, OnlineClient, PolkadotConfig},
-    ContractEvent, ContractEventData, InvalidSchema, Schema,
+    self,
+    sp_core::ByteArray,
+    substrate_api_client::{
+        self,
+        ac_primitives::{Block, Config, Header, PolkadotConfig},
+        rpc::{HandleSubscription, JsonrpseeClient, Request},
+        Api, GetChainInfo, SubscribeChain,
+    },
+    CodeStored, ContractCodeUpdated, Instantiated, MetadataCache, Terminated,
 };
 use db::{
     code, contract, event, node, sea_query::OnConflict, ActiveModelTrait, ActiveValue, ColumnTrait,
@@ -13,7 +17,7 @@ use db::{
     TransactionErrorExt, TransactionTrait,
 };
 use derive_more::{Display, Error, From};
-use futures_util::{pin_mut, stream::FuturesUnordered, TryStreamExt};
+use futures_util::{pin_mut, stream, TryStreamExt};
 use itertools::Itertools;
 use tracing::{debug, info};
 
@@ -26,14 +30,12 @@ pub enum WatchError {
     DatabaseError(DbErr),
 
     /// Substrate RPC-related error.
-    RpcError(subxt::Error),
+    #[display(fmt = "rpc error: {:?}", _0)]
+    RpcError(#[error(ignore)] substrate_api_client::Error),
 
     /// JSON serialization error.
     JsonError(serde_json::Error),
 
-    /// User provided invalid schema name.
-    Schema(InvalidSchema),
-
     /// The provided node name is incorrect.
     #[display(fmt = "node not found")]
     NodeNotFound,
@@ -58,37 +60,46 @@ pub async fn watch(database: DatabaseConnection, name: String) -> Result<(), Wat
         .await?
         .ok_or(WatchError::NodeNotFound)?;
 
-    let api = OnlineClient::<PolkadotConfig>::from_url(&node.url).await?;
+    let client = JsonrpseeClient::new(&node.url).map_err(substrate_api_client::Error::RpcClient)?;
+    let api = Api::<PolkadotConfig, _>::new(client).await?;
 
-    let schema = Schema::from_str(&node.schema)?;
+    let mut metadata_cache = MetadataCache::new();
 
-    let subscription = api.blocks().subscribe_finalized().await?;
+    let mut subscription = api.subscribe_finalized_heads()?;
 
     // Attempt to catch-up to the latest block.
     info!("attempting to catch-up to the latest block");
-    let latest = api.blocks().at_latest().await?;
+    let latest = api
+        .get_block(None)
+        .await?
+        .expect("at least one block is expected");
     let stream = block_mapping_stream(
-        (node.confirmed_block + 1) as u64..=latest.number() as u64,
+        (node.confirmed_block + 1) as u32..=latest.header.number,
         &api,
     )
-    .and_then(|(_, hash)| api.blocks().at(hash));
+    .try_filter_map(|(_, hash)| rpc::block(&api, Some(hash)));
 
     pin_mut!(stream);
 
     while let Some(block) = stream.try_next().await? {
-        debug!(block_number = %block.number(), "found a block to catch-up to");
-        node = process_block(schema, node, &database, &api, block).await?;
+        debug!(block_number = %block.header().number(), "found a block to catch-up to");
+        node = process_block(node, &database, &api, block.header(), &mut metadata_cache).await?;
     }
 
     // Proceed with the subscription, since an attempt to traverse missed blocks was already made.
     info!("processing new blocks from now on");
-    let confirmed_block = node.confirmed_block;
-    let mut stream =
-        subscription.try_filter(|block| future::ready(block.number() as i64 > confirmed_block));
 
-    while let Some(block) = stream.try_next().await? {
-        debug!(block_number = %block.number(), "found new block");
-        node = process_block(schema, node, &database, &api, block).await?;
+    let confirmed_block = node.confirmed_block as u32;
+    let mut subscription_iter =
+        iter::from_fn(|| subscription.next()).filter_ok(|header| header.number() > confirmed_block);
+
+    while let Some(header) = subscription_iter
+        .next()
+        .transpose()
+        .map_err(substrate_api_client::Error::RpcClient)?
+    {
+        debug!(block_number = %header.number(), "found new block");
+        node = process_block(node, &database, &api, &header, &mut metadata_cache).await?;
     }
 
     Ok(())
@@ -99,44 +110,33 @@ pub async fn watch(database: DatabaseConnection, name: String) -> Result<(), Wat
 ///
 /// Returns new [`node::Model`], which represents an updated node
 /// with up-to-date confirmed block counter.
-async fn process_block<T>(
-    schema: Schema<T>,
+async fn process_block<C: Request>(
     node: node::Model,
     database: &DatabaseConnection,
-    api: &OnlineClient<T>,
-    block: Block<T, OnlineClient<T>>,
-) -> Result<node::Model, WatchError>
-where
-    T: Config + Send + Sync,
-    T::Header: Header<Number = u32>,
-{
+    api: &Api<PolkadotConfig, C>,
+    block_header: &<PolkadotConfig as Config>::Header,
+    metadata_cache: &mut MetadataCache,
+) -> Result<node::Model, WatchError> {
     let mut active_node: node::ActiveModel = node.clone().into();
 
-    let block_millis = schema.block_timestamp_millis(api, block.hash()).await?;
+    let block_hash = block_header.hash();
+    let block_number = block_header.number();
+
+    let block_millis = rpc::block_timestamp_millis(api, block_hash).await?;
     let raw_timestamp = unix_ts::Timestamp::from_millis(block_millis);
     let offset_timestamp = OffsetDateTime::from_unix_timestamp(raw_timestamp.seconds())
         .expect("invalid timestamp was provided");
     let block_timestamp = PrimitiveDateTime::new(offset_timestamp.date(), offset_timestamp.time());
 
-    let events = block.events().await?;
+    let events = rpc::events(api, block_hash, metadata_cache).await?;
 
-    let code_uploads = schema
-        .events(&events, ContractEvent::CodeStored)
-        .filter_map_ok(|event| match event {
-            ContractEventData::CodeStored { code_hash } => Some(code_hash),
-            _ => None,
-        })
-        .map_ok(|code_hash| {
-            let hash = block.hash();
-
-            async move {
-                schema
-                    .pristine_code(api, hash, &code_hash)
-                    .await
-                    .map(|code| (code_hash.0, code))
-            }
+    let code_uploads = stream::iter(events.find::<CodeStored>())
+        .err_into()
+        .and_then(|CodeStored { code_hash }| async move {
+            rpc::pristine_code(api, block_hash, code_hash)
+                .await
+                .map(|code| (code_hash.0, code))
         })
-        .try_collect::<_, FuturesUnordered<_>, _>()?
         .try_filter_map(|(hash, code)| ready(Ok(code.map(|val| (hash, val)))))
         .map_ok(|(hash, code)| code::ActiveModel {
             hash: ActiveValue::Set(hash.to_vec()),
@@ -145,50 +145,43 @@ where
         .try_collect::<Vec<_>>()
         .await?;
 
-    let instantiations = schema
-        .events(&events, ContractEvent::Instantiated)
-        .filter_map_ok(|event| match event {
-            ContractEventData::Instantiated { contract, deployer } => Some((contract, deployer)),
-            _ => None,
-        })
-        .map_ok(|(contract, deployer)| async {
-            schema
-                .contract_info_of(api, block.hash(), &contract)
+    let instantiations = stream::iter(events.find::<Instantiated>())
+        .err_into()
+        .and_then(|Instantiated { deployer, contract }| async move {
+            rpc::contract_info_of(api, block_hash, &contract)
                 .await
                 .map(|info| (contract, deployer, info))
         })
-        .try_collect::<_, FuturesUnordered<_>, _>()?
         .try_filter_map(|(contract, deployer, info)| {
             ready(Ok(info.map(|val| (contract, deployer, val))))
         })
         .map_ok(|(contract, deployer, info)| contract::ActiveModel {
             code_hash: ActiveValue::Set(info.code_hash.0.to_vec()),
             node_id: ActiveValue::Set(node.id),
-            address: ActiveValue::Set(contract.0.to_vec()),
-            owner: ActiveValue::Set(Some(deployer.0.to_vec())),
+            address: ActiveValue::Set(contract.as_slice().to_vec()),
+            owner: ActiveValue::Set(Some(deployer.as_slice().to_vec())),
             ..Default::default()
         })
         .try_collect::<Vec<_>>()
         .await?;
 
-    let code_hash_updates: Vec<_> = schema
-        .events(&events, ContractEvent::ContractCodeUpdated)
-        .filter_map_ok(|event| match event {
-            ContractEventData::ContractCodeUpdated {
-                contract,
-                new_code_hash,
-            } => Some((contract.0, new_code_hash.0)),
-            _ => None,
-        })
-        .try_collect()?;
-
-    let terminations: Vec<_> = schema
-        .events(&events, ContractEvent::Terminated)
-        .filter_map_ok(|event| match event {
-            ContractEventData::Terminated { contract } => Some(contract.0),
-            _ => None,
-        })
-        .try_collect()?;
+    let code_hash_updates: Vec<_> = events
+        .find::<ContractCodeUpdated>()
+        .map_ok(
+            |ContractCodeUpdated {
+                 contract,
+                 new_code_hash,
+                 ..
+             }| { (contract, new_code_hash) },
+        )
+        .try_collect()
+        .map_err(substrate_api_client::Error::NodeApi)?;
+
+    let terminations: Vec<_> = events
+        .find::<Terminated>()
+        .map_ok(|Terminated { contract, .. }| contract)
+        .try_collect()
+        .map_err(substrate_api_client::Error::NodeApi)?;
 
     database
         .transaction(|txn| {
@@ -237,7 +230,7 @@ where
                 for (contract, new_code_hash) in code_hash_updates {
                     event::ActiveModel {
                         node_id: ActiveValue::Set(node.id),
-                        account: ActiveValue::Set(contract.to_vec()),
+                        account: ActiveValue::Set(contract.as_slice().to_vec()),
                         event_type: ActiveValue::Set(event::EventType::CodeHashUpdate),
                         body: ActiveValue::Set(serde_json::to_string(
                             &event::EventBody::CodeHashUpdate {
@@ -253,7 +246,7 @@ where
                     contract::Entity::update_many()
                         .col_expr(contract::Column::CodeHash, (&new_code_hash[..]).into())
                         .filter(contract::Column::NodeId.eq(node.id))
-                        .filter(contract::Column::Address.eq(&contract[..]))
+                        .filter(contract::Column::Address.eq(contract.as_slice()))
                         .exec(txn)
                         .await?;
                 }
@@ -264,7 +257,7 @@ where
                     event::Entity::insert_many(terminations.iter().map(|model| {
                         event::ActiveModel {
                             node_id: ActiveValue::Set(node.id),
-                            account: ActiveValue::Set(model.to_vec()),
+                            account: ActiveValue::Set(model.as_slice().to_vec()),
                             event_type: ActiveValue::Set(event::EventType::Termination),
                             body: ActiveValue::Set(termination_body.clone()),
                             block_timestamp: ActiveValue::Set(block_timestamp),
@@ -278,13 +271,13 @@ where
                         .filter(contract::Column::NodeId.eq(node.id))
                         .filter(
                             contract::Column::Address
-                                .is_in(terminations.iter().map(|val| &val[..])),
+                                .is_in(terminations.iter().map(|val| val.as_slice())),
                         )
                         .exec(txn)
                         .await?;
                 }
 
-                active_node.confirmed_block = ActiveValue::Set(block.number() as i64);
+                active_node.confirmed_block = ActiveValue::Set(block_number as i64);
 
                 Ok(active_node.update(txn).await?)
             })
diff --git a/crates/event_client/src/main.rs b/crates/event_client/src/main.rs
index f4606fb..312fe9b 100644
--- a/crates/event_client/src/main.rs
+++ b/crates/event_client/src/main.rs
@@ -41,6 +41,9 @@
 //! [`traverse`]: cli::traverse
 //! [`update_contract`]: cli::update_contract
 
+#![deny(missing_docs)]
+#![deny(clippy::missing_docs_in_private_items)]
+
 /// CLI general configuration and subcommands.
 mod cli;
 
@@ -56,7 +59,9 @@ use tracing::info;
 /// Event client entrypoint.
 #[tokio::main]
 async fn main() -> Result<(), anyhow::Error> {
-    let config = Config::new()?;
+    let cli = Cli::parse();
+
+    let config = Config::new(cli.config)?;
 
     logging::init(&config);
 
@@ -64,13 +69,12 @@ async fn main() -> Result<(), anyhow::Error> {
     let database = Database::connect(&config.database.url).await?;
     info!("database connection established");
 
-    match Cli::parse().command {
+    match cli.command {
         Command::Initialize {
             name,
             url,
-            schema,
             payment_address,
-        } => cli::initialize(database, name, url, schema, payment_address).await?,
+        } => cli::initialize(database, name, url, payment_address).await?,
         Command::Traverse { name } => cli::traverse(database, name).await?,
         Command::UpdateContract {
             name,
diff --git a/crates/event_client/src/utils.rs b/crates/event_client/src/utils.rs
index e74ba4b..245caa4 100644
--- a/crates/event_client/src/utils.rs
+++ b/crates/event_client/src/utils.rs
@@ -1,8 +1,6 @@
-use common::rpc::subxt::{
-    self,
-    client::OnlineClientT,
-    rpc::types::{BlockNumber, NumberOrHex},
-    Config,
+use common::rpc::{
+    sp_core::H256,
+    substrate_api_client::{ac_primitives::PolkadotConfig, rpc::Request, Api, Error, GetChainInfo},
 };
 use futures_util::{stream, Stream, StreamExt, TryStreamExt};
 
@@ -37,21 +35,15 @@ pub(crate) fn extract_code_hash<T: AsRef<[u8]>>(key: T) -> Vec<u8> {
 /// Get a mapping stream from block number to block hash.
 ///
 /// The stream may skip blocks, to which an RPC node did not provide a hash.
-pub(crate) fn block_mapping_stream<
-    'a,
-    I: IntoIterator<Item = u64> + 'a,
-    T: Config,
-    C: OnlineClientT<T>,
->(
+pub(crate) fn block_mapping_stream<'a, I: IntoIterator<Item = u32> + 'a, C: Request>(
     range: I,
-    api: &'a C,
-) -> impl Stream<Item = Result<(u64, T::Hash), subxt::Error>> + 'a {
+    api: &'a Api<PolkadotConfig, C>,
+) -> impl Stream<Item = Result<(u32, H256), Error>> + 'a {
     stream::iter(range.into_iter())
         .map(Ok)
         .try_filter_map(move |block_number| async move {
             Ok(api
-                .rpc()
-                .block_hash(Some(BlockNumber::from(NumberOrHex::from(block_number))))
+                .get_block_hash(Some(block_number))
                 .await?
                 .map(|hash| (block_number, hash)))
         })
@@ -59,9 +51,9 @@ pub(crate) fn block_mapping_stream<
 
 #[cfg(test)]
 mod tests {
-    use common::rpc::subxt::ext::{
-        sp_core::ByteArray,
-        sp_runtime::{app_crypto::Ss58Codec, AccountId32},
+    use common::rpc::sp_core::{
+        crypto::{AccountId32, Ss58Codec},
+        ByteArray,
     };
 
     #[test]
diff --git a/crates/migration/src/cli.rs b/crates/migration/src/cli.rs
index f58a6db..52cd4f6 100644
--- a/crates/migration/src/cli.rs
+++ b/crates/migration/src/cli.rs
@@ -1,3 +1,5 @@
+use std::path::PathBuf;
+
 use clap::Parser;
 use sea_orm_cli::MigrateSubcommands;
 
@@ -5,4 +7,8 @@ use sea_orm_cli::MigrateSubcommands;
 pub(crate) struct Cli {
     #[clap(subcommand)]
     pub command: Option<MigrateSubcommands>,
+
+    /// Path to configuration file.
+    #[clap(short, long, value_parser)]
+    pub config: Option<PathBuf>,
 }
diff --git a/crates/migration/src/lib.rs b/crates/migration/src/lib.rs
index e01087b..5e62ffc 100644
--- a/crates/migration/src/lib.rs
+++ b/crates/migration/src/lib.rs
@@ -13,6 +13,8 @@ mod m20220101_000010_create_build_session_tokens_table;
 mod m20220101_000011_create_logs_table;
 mod m20220101_000012_create_cli_tokens_table;
 mod m20220101_000013_create_events_table;
+mod m20220101_000014_remove_node_schema;
+mod m20220101_000015_remove_rust_version;
 
 pub(crate) use m20220101_000001_create_users_table::Users;
 pub(crate) use m20220101_000003_create_authentication_tokens_table::AuthenticationTokens;
@@ -39,6 +41,8 @@ impl MigratorTrait for Migrator {
             Box::new(m20220101_000011_create_logs_table::Migration),
             Box::new(m20220101_000012_create_cli_tokens_table::Migration),
             Box::new(m20220101_000013_create_events_table::Migration),
+            Box::new(m20220101_000014_remove_node_schema::Migration),
+            Box::new(m20220101_000015_remove_rust_version::Migration),
         ]
     }
 }
diff --git a/crates/migration/src/m20220101_000014_remove_node_schema.rs b/crates/migration/src/m20220101_000014_remove_node_schema.rs
new file mode 100644
index 0000000..451bcb1
--- /dev/null
+++ b/crates/migration/src/m20220101_000014_remove_node_schema.rs
@@ -0,0 +1,36 @@
+use sea_orm_migration::prelude::*;
+
+#[derive(DeriveMigrationName)]
+pub struct Migration;
+
+#[async_trait::async_trait]
+impl MigrationTrait for Migration {
+    async fn up(&self, manager: &SchemaManager) -> Result<(), DbErr> {
+        manager
+            .alter_table(
+                Table::alter()
+                    .table(Nodes::Table)
+                    .drop_column(Nodes::Schema)
+                    .to_owned(),
+            )
+            .await
+    }
+
+    async fn down(&self, manager: &SchemaManager) -> Result<(), DbErr> {
+        manager
+            .alter_table(
+                Table::alter()
+                    .table(Nodes::Table)
+                    .add_column(ColumnDef::new(Nodes::Schema).string().not_null())
+                    .to_owned(),
+            )
+            .await
+    }
+}
+
+/// Learn more at https://docs.rs/sea-query#iden
+#[derive(Iden)]
+enum Nodes {
+    Table,
+    Schema,
+}
diff --git a/crates/migration/src/m20220101_000015_remove_rust_version.rs b/crates/migration/src/m20220101_000015_remove_rust_version.rs
new file mode 100644
index 0000000..d9469a1
--- /dev/null
+++ b/crates/migration/src/m20220101_000015_remove_rust_version.rs
@@ -0,0 +1,54 @@
+use sea_orm_migration::prelude::*;
+
+#[derive(DeriveMigrationName)]
+pub struct Migration;
+
+#[async_trait::async_trait]
+impl MigrationTrait for Migration {
+    async fn up(&self, manager: &SchemaManager) -> Result<(), DbErr> {
+        manager
+            .alter_table(
+                Table::alter()
+                    .table(BuildSessions::Table)
+                    .drop_column(BuildSessions::RustcVersion)
+                    .to_owned(),
+            )
+            .await
+    }
+
+    async fn down(&self, manager: &SchemaManager) -> Result<(), DbErr> {
+        manager
+            .alter_table(
+                Table::alter()
+                    .table(BuildSessions::Table)
+                    .add_column(
+                        ColumnDef::new(BuildSessions::RustcVersion)
+                            .string()
+                            .not_null()
+                            .default("0.0.0"),
+                    )
+                    .to_owned(),
+            )
+            .await?;
+
+        manager
+            .alter_table(
+                Table::alter()
+                    .table(BuildSessions::Table)
+                    .modify_column(
+                        ColumnDef::new(BuildSessions::RustcVersion)
+                            .string()
+                            .not_null(),
+                    )
+                    .to_owned(),
+            )
+            .await
+    }
+}
+
+/// Learn more at https://docs.rs/sea-query#iden
+#[derive(Iden)]
+pub(crate) enum BuildSessions {
+    Table,
+    RustcVersion,
+}
diff --git a/crates/migration/src/main.rs b/crates/migration/src/main.rs
index b0afc35..7a96730 100644
--- a/crates/migration/src/main.rs
+++ b/crates/migration/src/main.rs
@@ -12,7 +12,7 @@ use tracing::info;
 async fn main() -> Result<(), Box<dyn Error>> {
     let cli = Cli::parse();
 
-    let config = Config::new()?;
+    let config = Config::new(cli.config)?;
 
     info!("connecting to database");
     let db = Database::connect(&config.database.url).await?;
diff --git a/crates/patron/Cargo.toml b/crates/patron/Cargo.toml
index 7586740..43ea2e7 100644
--- a/crates/patron/Cargo.toml
+++ b/crates/patron/Cargo.toml
@@ -17,6 +17,7 @@ open = "4.1.0"
 rand = "0.8.5"
 reqwest = { version = "0.11.17", default-features = false, features = ["blocking", "json", "multipart", "rustls-tls-webpki-roots"] }
 serde = { version = "1.0.163", features = ["derive"] }
+serde_json = "1.0.97"
 tempfile = "3.5.0"
 toml = { version = "0.7.3", default-features = false, features = ["display"] }
 walkdir = "2.3.3"
diff --git a/crates/patron/src/commands.rs b/crates/patron/src/commands.rs
index 1f5c92d..4c5fd32 100644
--- a/crates/patron/src/commands.rs
+++ b/crates/patron/src/commands.rs
@@ -1,11 +1,19 @@
 /// `auth` subcommand.
 mod auth;
 
+/// `build` subcommand.
+mod build;
+
 /// `deploy` subcommand.
 mod deploy;
 
+/// `verify` subcommand.
+mod verify;
+
 pub(crate) use auth::auth;
+pub(crate) use build::build;
 pub(crate) use deploy::deploy;
+pub(crate) use verify::verify;
 
 use std::path::PathBuf;
 
@@ -30,8 +38,14 @@ pub(crate) enum Commands {
     /// Authenticate using the browser flow.
     Auth(Auth),
 
-    /// Start the deployment process.
+    /// Start the build and deployment process.
     Deploy(Deploy),
+
+    /// Build the contract remotely without the initial deployment.
+    Build(Build),
+
+    /// Verify remotely built contract with locally built one.
+    Verify(Verify),
 }
 
 /// `auth` subcommand configuration.
@@ -81,3 +95,31 @@ pub struct Deploy {
     #[clap(allow_hyphen_values = true)]
     cargo_contract_flags: Vec<String>,
 }
+
+/// `build` subcommand configuration.
+#[derive(Args)]
+pub struct Build {
+    /// Always start new build sessions, even if the source code was verified previously.
+    #[arg(short, long)]
+    force_new_build_sessions: bool,
+
+    /// Path where to output a newly built contract WASM blob.
+    #[arg(short, long)]
+    wasm_path: Option<PathBuf>,
+
+    /// Path where to output a newly built contract JSON metadata.
+    #[arg(short, long)]
+    metadata_path: Option<PathBuf>,
+
+    /// Path where to output a bundled JSON, which contains both WASM and metadata.
+    #[arg(short, long)]
+    bundle_path: Option<PathBuf>,
+}
+
+/// `verify` subcommand configuration.
+#[derive(Args)]
+pub struct Verify {
+    /// Always start new build sessions, even if the source code was verified previously.
+    #[arg(short, long)]
+    force_new_build_sessions: bool,
+}
diff --git a/crates/patron/src/commands/build.rs b/crates/patron/src/commands/build.rs
new file mode 100644
index 0000000..0b5a1e2
--- /dev/null
+++ b/crates/patron/src/commands/build.rs
@@ -0,0 +1,119 @@
+use std::{
+    fs::{self, File},
+    io::{self, Read, Seek, SeekFrom},
+    path::PathBuf,
+};
+
+use derive_more::{Display, Error, From};
+use indicatif::ProgressBar;
+use serde_json::Value;
+use tempfile::PersistError;
+
+use crate::{
+    commands::Build,
+    config::{AuthenticationConfig, AuthenticationConfigError, ProjectConfig},
+    process::{remote_build, FinishedBuildSession, RemoteBuildError},
+};
+
+/// Directory, where build artifacts will be stored.
+const TARGET_DIR: &str = "./target/ink";
+
+/// Default path used to save WASM blob.
+const DEFAULT_WASM_PATH: &str = "./target/ink/contract.wasm";
+
+/// Default path used to save JSON metadata.
+const DEFAULT_METADATA_PATH: &str = "./target/ink/contract.json";
+
+/// Default path used to save bundled contract file.
+const DEFAULT_BUNDLE_PATH: &str = "./target/ink/bundle.contract";
+
+/// `build` subcommand errors.
+#[derive(Debug, Display, From, Error)]
+pub(crate) enum BuildError {
+    /// Authentication configuration error.
+    Authentication(AuthenticationConfigError),
+
+    /// Unable to parse the project configuration with [`figment`].
+    Figment(figment::Error),
+
+    /// IO-related error.
+    Io(io::Error),
+
+    /// Metadata JSON parsing error.
+    Json(serde_json::Error),
+
+    /// Remote build process error.
+    BuildProcessError(RemoteBuildError),
+
+    /// Unable to move temporary files onto a new location.
+    PersistError(PersistError),
+
+    /// Invalid metadata object.
+    #[display(fmt = "unable to retrieve the 'source' key from the metadata JSON")]
+    InvalidMetadataObject,
+}
+
+/// Build flow entrypoint.
+pub(crate) fn build(
+    Build {
+        force_new_build_sessions,
+        wasm_path,
+        metadata_path,
+        bundle_path,
+    }: Build,
+) -> Result<(), BuildError> {
+    let auth_config = AuthenticationConfig::new()?;
+    let project_config = ProjectConfig::new()?;
+
+    let progress = ProgressBar::new_spinner();
+
+    let FinishedBuildSession {
+        mut wasm_file,
+        mut metadata_file,
+        ..
+    } = remote_build(
+        &auth_config,
+        &project_config,
+        &progress,
+        force_new_build_sessions,
+    )?;
+
+    if wasm_path.is_none() || metadata_path.is_none() || bundle_path.is_none() {
+        fs::create_dir_all(TARGET_DIR)?;
+    }
+
+    wasm_file.seek(SeekFrom::Start(0))?;
+    let mut wasm_buf = Vec::new();
+    wasm_file.read_to_end(&mut wasm_buf)?;
+
+    metadata_file.seek(SeekFrom::Start(0))?;
+    let mut metadata: Value = serde_json::from_reader(&metadata_file)?;
+    let wasm_hex = format!("0x{}", hex::encode(&wasm_buf));
+    metadata["source"]
+        .as_object_mut()
+        .ok_or(BuildError::InvalidMetadataObject)?
+        .insert("wasm".into(), Value::String(wasm_hex));
+
+    // Ensure that cross-boundary filesystem copies are supported
+    // by manually calling fs::copy.
+    wasm_file.seek(SeekFrom::Start(0))?;
+
+    fs::copy(
+        &mut wasm_file,
+        wasm_path.unwrap_or(PathBuf::from(DEFAULT_WASM_PATH)),
+    )?;
+
+    metadata_file.seek(SeekFrom::Start(0))?;
+
+    fs::copy(
+        &mut metadata_file,
+        metadata_path.unwrap_or(PathBuf::from(DEFAULT_METADATA_PATH)),
+    )?;
+
+    serde_json::to_writer(
+        File::create(bundle_path.unwrap_or(PathBuf::from(DEFAULT_BUNDLE_PATH)))?,
+        &metadata,
+    )?;
+
+    Ok(())
+}
diff --git a/crates/patron/src/commands/deploy.rs b/crates/patron/src/commands/deploy.rs
index 7c70d91..1e3abb8 100644
--- a/crates/patron/src/commands/deploy.rs
+++ b/crates/patron/src/commands/deploy.rs
@@ -1,84 +1,23 @@
 use std::{
-    io::{self, BufRead, BufReader, Read, Seek},
+    io,
     process::{Command, Stdio},
-    time::Duration,
 };
 
-use common::hash;
 use derive_more::{Display, Error, From};
 use indicatif::ProgressBar;
-use reqwest::blocking::multipart::{Form, Part};
-use serde::{Deserialize, Serialize};
-use tempfile::NamedTempFile;
 
 use crate::{
-    archiver::{build_zip_archive, ArchiverError},
     commands::Deploy,
     config::{AuthenticationConfig, AuthenticationConfigError, ProjectConfig},
+    process::{
+        ensure_cargo_contract_exists, remote_build, CargoContractInstallError,
+        FinishedBuildSession, RemoteBuildError,
+    },
 };
 
-/// `cargo-contract` repository used to install the potentially missing `cargo-contract` binary.
-const CARGO_CONTRACT_REPO: &str = "https://github.com/paritytech/cargo-contract";
-
 /// Default value passed to weight configuration flags of the `cargo-contract`.
 const DEFAULT_WEIGHT_VAL: u64 = 10_000_000_000;
 
-/// JSON response body with the code hash of a cached build session that matches some source code.
-#[derive(Deserialize)]
-struct ExistingCodeHashResponse {
-    /// Code hash hex-encoded value.
-    code_hash: String,
-}
-
-/// JSON response body returned by build session creation and source code upload requests.
-#[derive(Deserialize)]
-struct CreateResponse {
-    /// Resource identifier.
-    id: i64,
-}
-
-/// JSON request body that is used to create a new build session.
-#[derive(Serialize)]
-struct BuildSessionCreateRequest<'a> {
-    /// Source code identifier to build from.
-    source_code_id: i64,
-
-    /// Preferred Rust toolchain version.
-    rustc_version: &'a str,
-
-    /// Preferred `cargo-contract` version.
-    cargo_contract_version: &'a str,
-}
-
-/// JSON response body with the status of an initiated build session.
-#[derive(Deserialize)]
-struct BuildSessionStatus {
-    /// Current build session status.
-    ///
-    /// For an enumeration of supported values see the `db` crate documentation.
-    status: String,
-
-    /// Build session code hash, if the build was completed successfully.
-    code_hash: Option<String>,
-}
-
-/// JSON response body with build session logs.
-#[derive(Deserialize)]
-struct BuildSessionLogs {
-    /// Contained build session logs.
-    logs: Vec<BuildSessionLog>,
-}
-
-/// A single build session log entry.
-#[derive(Deserialize)]
-struct BuildSessionLog {
-    /// Log entry identifier, that can be used to paginate over build session logs.
-    id: i64,
-
-    /// Log entry text value.
-    text: String,
-}
-
 /// `deploy` subcommand errors.
 #[derive(Debug, Display, From, Error)]
 pub(crate) enum DeployError {
@@ -91,24 +30,19 @@ pub(crate) enum DeployError {
     /// IO-related error.
     Io(io::Error),
 
-    /// HTTP client error.
-    Http(reqwest::Error),
-
-    /// Zip archiver error.
-    #[display(fmt = "unable to create zip archive: {}", _0)]
-    Archiver(ArchiverError),
-
     /// [`which`] crate was unable to determine location of the `cargo` binary file.
     #[display(fmt = "unable to locate cargo: {}", _0)]
     Which(which::Error),
 
-    /// Unable to install `cargo-contract` binary.
-    #[display(fmt = "unable to install cargo-contract")]
-    CargoContractInstallError,
+    /// Unable to install `cargo-contract`.
+    CargoContractInstallError(CargoContractInstallError),
 
     /// Contract could not be instantiated from the downloaded WASM blob.
     #[display(fmt = "unable to instantiate a contract")]
     InstantiationError,
+
+    /// Remote build process error.
+    RemoteBuildError(RemoteBuildError),
 }
 
 /// Deployment flow entrypoint.
@@ -127,169 +61,24 @@ pub(crate) fn deploy(
     let auth_config = AuthenticationConfig::new()?;
     let project_config = ProjectConfig::new()?;
 
-    let server_path = auth_config.server_path();
+    let progress = ProgressBar::new_spinner();
 
     let cargo = which::which("cargo")?;
 
-    let pg = ProgressBar::new_spinner();
-
-    pg.enable_steady_tick(Duration::from_millis(150));
-    pg.set_message("Archiving...");
-
-    let mut archive_file = NamedTempFile::new()?;
-
-    build_zip_archive(&mut archive_file, &pg)?;
-
-    let mut archive_buf = Vec::with_capacity(archive_file.stream_position()? as usize);
-    archive_file.seek(std::io::SeekFrom::Start(0))?;
-    archive_file.read_to_end(&mut archive_buf)?;
-    let archive_hash = hex::encode(hash::blake2(&archive_buf));
-
-    pg.set_message("Retrieving existing build session...");
+    ensure_cargo_contract_exists(&cargo, &project_config.cargo_contract_version, &progress)?;
 
-    let response = reqwest::blocking::Client::new()
-        .get(format!("{server_path}/buildSessions/latest/{archive_hash}"))
-        .bearer_auth(auth_config.token())
-        .send()?;
-
-    let code_hash = if response.status().is_success() && !force_new_build_sessions {
-        let json: ExistingCodeHashResponse = response.json()?;
-        json.code_hash
-    } else {
-        let source_code_body = Form::new().part(
-            "archive",
-            Part::file(archive_file.path())?.mime_str("application/zip")?,
-        );
-
-        pg.set_message("Uploading source code...");
-
-        let source_code_upload: CreateResponse = reqwest::blocking::Client::new()
-            .post(format!("{server_path}/sourceCode"))
-            .bearer_auth(auth_config.token())
-            .multipart(source_code_body)
-            .send()?
-            .error_for_status()?
-            .json()?;
-
-        pg.set_message("Creating build session...");
-
-        let build_session_create: CreateResponse = reqwest::blocking::Client::new()
-            .post(format!("{server_path}/buildSessions"))
-            .bearer_auth(auth_config.token())
-            .json(&BuildSessionCreateRequest {
-                source_code_id: source_code_upload.id,
-                rustc_version: &project_config.rustc_version,
-                cargo_contract_version: &project_config.cargo_contract_version,
-            })
-            .send()?
-            .error_for_status()?
-            .json()?;
-
-        let mut log_position = 0;
-
-        pg.set_message("Awaiting for build to finish...");
-
-        loop {
-            let logs: BuildSessionLogs = reqwest::blocking::Client::new()
-                .get(format!(
-                    "{server_path}/buildSessions/logs/{}",
-                    build_session_create.id
-                ))
-                .query(&[("position", log_position)])
-                .bearer_auth(auth_config.token())
-                .send()?
-                .error_for_status()?
-                .json()?;
-
-            for log in &logs.logs {
-                pg.suspend(|| print!("{}", log.text));
-            }
-
-            if let Some(log) = logs.logs.last() {
-                log_position = log.id;
-            }
-
-            let build_session_status: BuildSessionStatus = reqwest::blocking::Client::new()
-                .get(format!(
-                    "{server_path}/buildSessions/status/{}",
-                    build_session_create.id
-                ))
-                .bearer_auth(auth_config.token())
-                .send()?
-                .error_for_status()?
-                .json()?;
-
-            match (
-                &*build_session_status.status,
-                build_session_status.code_hash,
-            ) {
-                ("completed", Some(code_hash)) => break code_hash,
-                ("failed", _) => {
-                    pg.finish_with_message("Build failed.");
-                    return Ok(());
-                }
-                _ => {}
-            }
-
-            std::thread::sleep(Duration::from_secs(3));
-        }
-    };
-
-    pg.set_message("Installing cargo-contract...");
-
-    let cargo_contract_version = Command::new(&cargo)
-        .stdout(Stdio::null())
-        .stderr(Stdio::null())
-        .args(["contract", "--version"])
-        .spawn()?
-        .wait()?;
-
-    if !cargo_contract_version.success() {
-        let mut install_command = Command::new(&cargo)
-            .stdout(Stdio::piped())
-            .stderr(Stdio::piped())
-            .args([
-                "install",
-                "cargo-contract",
-                "--git",
-                CARGO_CONTRACT_REPO,
-                "--tag",
-                &format!("v{}", &project_config.cargo_contract_version),
-            ])
-            .spawn()?;
-
-        let logs = BufReader::new(install_command.stderr.take().unwrap());
-
-        for log in logs.lines() {
-            pg.println(log?);
-        }
-
-        if !install_command.wait()?.success() {
-            return Err(DeployError::CargoContractInstallError);
-        }
-    }
-
-    let mut wasm_file = tempfile::Builder::new().suffix(".wasm").tempfile()?;
-    let mut metadata_file = tempfile::Builder::new().suffix(".json").tempfile()?;
-
-    reqwest::blocking::Client::new()
-        .get(format!("{server_path}/buildSessions/wasm/{}", code_hash))
-        .bearer_auth(auth_config.token())
-        .send()?
-        .error_for_status()?
-        .copy_to(wasm_file.as_file_mut())?;
-
-    reqwest::blocking::Client::new()
-        .get(format!(
-            "{server_path}/buildSessions/metadata/{}",
-            code_hash
-        ))
-        .bearer_auth(auth_config.token())
-        .send()?
-        .error_for_status()?
-        .copy_to(metadata_file.as_file_mut())?;
+    let FinishedBuildSession {
+        wasm_file,
+        metadata_file,
+        code_hash,
+    } = remote_build(
+        &auth_config,
+        &project_config,
+        &progress,
+        force_new_build_sessions,
+    )?;
 
-    pg.set_message("Deploying...");
+    progress.set_message("Deploying...");
 
     let mut upload_command = Command::new(&cargo);
 
@@ -354,7 +143,7 @@ pub(crate) fn deploy(
         return Err(DeployError::InstantiationError);
     }
 
-    pg.finish_with_message(format!(
+    progress.finish_with_message(format!(
         "Contract uploaded: {}/codeHash/{}",
         auth_config.web_path(),
         code_hash
diff --git a/crates/patron/src/commands/verify.rs b/crates/patron/src/commands/verify.rs
new file mode 100644
index 0000000..4c08507
--- /dev/null
+++ b/crates/patron/src/commands/verify.rs
@@ -0,0 +1,91 @@
+use std::{
+    fs::File,
+    io::{self, Read},
+    process::{Command, Stdio},
+};
+
+use common::hash::blake2;
+use derive_more::{Display, Error, From};
+use indicatif::ProgressBar;
+
+use crate::{
+    commands::Verify,
+    config::{AuthenticationConfig, AuthenticationConfigError, ProjectConfig},
+    process::{
+        ensure_cargo_contract_exists, remote_build, CargoContractInstallError,
+        FinishedBuildSession, RemoteBuildError,
+    },
+};
+
+/// `verify` subcommand errors.
+#[derive(Debug, Display, From, Error)]
+pub(crate) enum VerifyError {
+    /// Authentication configuration error.
+    Authentication(AuthenticationConfigError),
+
+    /// Unable to parse the project configuration with [`figment`].
+    Figment(figment::Error),
+
+    /// IO-related error.
+    Io(io::Error),
+
+    /// Remote build process error.
+    BuildProcessError(RemoteBuildError),
+
+    /// [`which`] crate was unable to determine location of the `cargo` binary file.
+    #[display(fmt = "unable to locate cargo: {}", _0)]
+    Which(which::Error),
+
+    /// Unable to install `cargo-contract`.
+    CargoContractInstallError(CargoContractInstallError),
+}
+
+/// Verify flow entrypoint.
+pub(crate) fn verify(
+    Verify {
+        force_new_build_sessions,
+    }: Verify,
+) -> Result<(), VerifyError> {
+    let auth_config = AuthenticationConfig::new()?;
+    let project_config = ProjectConfig::new()?;
+
+    let progress = ProgressBar::new_spinner();
+
+    let cargo = which::which("cargo")?;
+
+    ensure_cargo_contract_exists(&cargo, &project_config.cargo_contract_version, &progress)?;
+
+    let FinishedBuildSession { code_hash, .. } = remote_build(
+        &auth_config,
+        &project_config,
+        &progress,
+        force_new_build_sessions,
+    )?;
+
+    println!("Remote code hash: 0x{code_hash}");
+
+    progress.finish_with_message("Remote build finished. Proceeding with the local build...");
+
+    Command::new(&cargo)
+        .stdout(Stdio::inherit())
+        .stderr(Stdio::inherit())
+        .args(["contract", "build", "--verifiable", "--release"])
+        .spawn()?
+        .wait()?;
+
+    let mut wasm_buf = Vec::new();
+
+    File::open("./target/ink/hello.wasm")?.read_to_end(&mut wasm_buf)?;
+
+    let local_code_hash = hex::encode(blake2(&wasm_buf));
+
+    println!("Local code hash: 0x{local_code_hash}");
+
+    if local_code_hash == code_hash {
+        println!("Code hashes are matching.");
+    } else {
+        println!("Code hashes do not match.");
+    }
+
+    Ok(())
+}
diff --git a/crates/patron/src/config.rs b/crates/patron/src/config.rs
index 02a854e..dec5cb0 100644
--- a/crates/patron/src/config.rs
+++ b/crates/patron/src/config.rs
@@ -109,9 +109,6 @@ impl AuthenticationConfig {
 pub struct ProjectConfig {
     /// `cargo-contract` package version.
     pub cargo_contract_version: String,
-
-    /// Rust toolchain version.
-    pub rustc_version: String,
 }
 
 impl ProjectConfig {
diff --git a/crates/patron/src/main.rs b/crates/patron/src/main.rs
index f44d0cd..2244ebc 100644
--- a/crates/patron/src/main.rs
+++ b/crates/patron/src/main.rs
@@ -7,6 +7,9 @@
 //! paths, we need to ignore directories which are most likely to be unused during builds,
 //! such as the `target` directory and hidden entries (for example, `.git`).
 
+#![deny(missing_docs)]
+#![deny(clippy::missing_docs_in_private_items)]
+
 use clap::Parser;
 use commands::{Cli, Commands};
 
@@ -19,6 +22,9 @@ mod commands;
 /// CLI-specific configuration (authentication, project).
 mod config;
 
+/// Remote build process implementation.
+mod process;
+
 /// CLI entrypoint.
 fn main() -> Result<(), anyhow::Error> {
     let cli = Cli::parse();
@@ -26,6 +32,8 @@ fn main() -> Result<(), anyhow::Error> {
     match cli.command {
         Commands::Auth(args) => commands::auth(args)?,
         Commands::Deploy(args) => commands::deploy(args)?,
+        Commands::Build(args) => commands::build(args)?,
+        Commands::Verify(args) => commands::verify(args)?,
     }
 
     Ok(())
diff --git a/crates/patron/src/process.rs b/crates/patron/src/process.rs
new file mode 100644
index 0000000..9b3be84
--- /dev/null
+++ b/crates/patron/src/process.rs
@@ -0,0 +1,297 @@
+use std::{
+    io::{self, BufRead, BufReader, Read, Seek},
+    path::Path,
+    process::{Command, Stdio},
+    time::Duration,
+};
+
+use common::hash;
+use derive_more::{Display, Error, From};
+use indicatif::ProgressBar;
+use reqwest::blocking::multipart::{Form, Part};
+use serde::{Deserialize, Serialize};
+use tempfile::NamedTempFile;
+
+use crate::{
+    archiver::{build_zip_archive, ArchiverError},
+    config::{AuthenticationConfig, ProjectConfig},
+};
+
+/// `cargo-contract` repository used to install the potentially missing `cargo-contract` binary.
+const CARGO_CONTRACT_REPO: &str = "https://github.com/paritytech/cargo-contract";
+
+/// JSON response body with the code hash of a cached build session that matches some source code.
+#[derive(Deserialize)]
+struct ExistingCodeHashResponse {
+    /// Code hash hex-encoded value.
+    code_hash: String,
+}
+
+/// JSON response body returned by build session creation and source code upload requests.
+#[derive(Deserialize)]
+struct CreateResponse {
+    /// Resource identifier.
+    id: i64,
+}
+
+/// JSON request body that is used to create a new build session.
+#[derive(Serialize)]
+struct BuildSessionCreateRequest<'a> {
+    /// Source code identifier to build from.
+    source_code_id: i64,
+
+    /// Preferred `cargo-contract` version.
+    cargo_contract_version: &'a str,
+}
+
+/// JSON response body with the status of an initiated build session.
+#[derive(Deserialize)]
+struct BuildSessionStatus {
+    /// Current build session status.
+    ///
+    /// For an enumeration of supported values see the `db` crate documentation.
+    status: String,
+
+    /// Build session code hash, if the build was completed successfully.
+    code_hash: Option<String>,
+}
+
+/// JSON response body with build session logs.
+#[derive(Deserialize)]
+struct BuildSessionLogs {
+    /// Contained build session logs.
+    logs: Vec<BuildSessionLog>,
+}
+
+/// A single build session log entry.
+#[derive(Deserialize)]
+struct BuildSessionLog {
+    /// Log entry identifier, that can be used to paginate over build session logs.
+    id: i64,
+
+    /// Log entry text value.
+    text: String,
+}
+
+/// `deploy` subcommand errors.
+#[derive(Debug, Display, From, Error)]
+pub(crate) enum RemoteBuildError {
+    /// IO-related error.
+    Io(io::Error),
+
+    /// HTTP client error.
+    Http(reqwest::Error),
+
+    /// Zip archiver error.
+    #[display(fmt = "unable to create zip archive: {}", _0)]
+    Archiver(ArchiverError),
+
+    /// Build session failed.
+    #[display(fmt = "unable to finish this build session")]
+    BuildFailed,
+}
+
+/// Finished remote build session.
+pub(crate) struct FinishedBuildSession {
+    /// Downloaded WASM blob from a remote build session.
+    pub wasm_file: NamedTempFile,
+
+    /// Downloaded JSON metadata from a remote build session.
+    pub metadata_file: NamedTempFile,
+
+    /// Code hash value of a resulted WASM blob.
+    pub code_hash: String,
+}
+
+/// Start remote build process.
+///
+/// This method returns two [`NamedTempFile`]'s which correspond to a WASM
+/// blob and a JSON metadata.
+pub(crate) fn remote_build(
+    auth_config: &AuthenticationConfig,
+    project_config: &ProjectConfig,
+    progress: &ProgressBar,
+    force_new_build_sessions: bool,
+) -> Result<FinishedBuildSession, RemoteBuildError> {
+    let server_path = auth_config.server_path();
+
+    progress.enable_steady_tick(Duration::from_millis(150));
+    progress.set_message("Archiving...");
+
+    let mut archive_file = NamedTempFile::new()?;
+
+    build_zip_archive(&mut archive_file, progress)?;
+
+    let mut archive_buf = Vec::with_capacity(archive_file.stream_position()? as usize);
+    archive_file.seek(std::io::SeekFrom::Start(0))?;
+    archive_file.read_to_end(&mut archive_buf)?;
+    let archive_hash = hex::encode(hash::blake2(&archive_buf));
+
+    progress.set_message("Retrieving existing build session...");
+
+    let response = reqwest::blocking::Client::new()
+        .get(format!("{server_path}/buildSessions/latest/{archive_hash}"))
+        .bearer_auth(auth_config.token())
+        .send()?;
+
+    let code_hash = if response.status().is_success() && !force_new_build_sessions {
+        let json: ExistingCodeHashResponse = response.json()?;
+        json.code_hash
+    } else {
+        let source_code_body = Form::new().part(
+            "archive",
+            Part::file(archive_file.path())?.mime_str("application/zip")?,
+        );
+
+        progress.set_message("Uploading source code...");
+
+        let source_code_upload: CreateResponse = reqwest::blocking::Client::new()
+            .post(format!("{server_path}/sourceCode"))
+            .bearer_auth(auth_config.token())
+            .multipart(source_code_body)
+            .send()?
+            .error_for_status()?
+            .json()?;
+
+        progress.set_message("Creating build session...");
+
+        let build_session_create: CreateResponse = reqwest::blocking::Client::new()
+            .post(format!("{server_path}/buildSessions"))
+            .bearer_auth(auth_config.token())
+            .json(&BuildSessionCreateRequest {
+                source_code_id: source_code_upload.id,
+                cargo_contract_version: &project_config.cargo_contract_version,
+            })
+            .send()?
+            .error_for_status()?
+            .json()?;
+
+        let mut log_position = 0;
+
+        progress.set_message("Awaiting for build to finish...");
+
+        loop {
+            let logs: BuildSessionLogs = reqwest::blocking::Client::new()
+                .get(format!(
+                    "{server_path}/buildSessions/logs/{}",
+                    build_session_create.id
+                ))
+                .query(&[("position", log_position)])
+                .bearer_auth(auth_config.token())
+                .send()?
+                .error_for_status()?
+                .json()?;
+
+            for log in &logs.logs {
+                progress.suspend(|| print!("{}", log.text));
+            }
+
+            if let Some(log) = logs.logs.last() {
+                log_position = log.id;
+            }
+
+            let build_session_status: BuildSessionStatus = reqwest::blocking::Client::new()
+                .get(format!(
+                    "{server_path}/buildSessions/status/{}",
+                    build_session_create.id
+                ))
+                .bearer_auth(auth_config.token())
+                .send()?
+                .error_for_status()?
+                .json()?;
+
+            match (
+                &*build_session_status.status,
+                build_session_status.code_hash,
+            ) {
+                ("completed", Some(code_hash)) => break code_hash,
+                ("failed", _) => {
+                    progress.finish_with_message("Build failed.");
+                    return Err(RemoteBuildError::BuildFailed);
+                }
+                _ => {}
+            }
+
+            std::thread::sleep(Duration::from_secs(3));
+        }
+    };
+
+    let mut wasm_file = tempfile::Builder::new().suffix(".wasm").tempfile()?;
+    let mut metadata_file = tempfile::Builder::new().suffix(".json").tempfile()?;
+
+    reqwest::blocking::Client::new()
+        .get(format!("{server_path}/buildSessions/wasm/{}", code_hash))
+        .bearer_auth(auth_config.token())
+        .send()?
+        .error_for_status()?
+        .copy_to(wasm_file.as_file_mut())?;
+
+    reqwest::blocking::Client::new()
+        .get(format!(
+            "{server_path}/buildSessions/metadata/{}",
+            code_hash
+        ))
+        .bearer_auth(auth_config.token())
+        .send()?
+        .error_for_status()?
+        .copy_to(metadata_file.as_file_mut())?;
+
+    Ok(FinishedBuildSession {
+        wasm_file,
+        metadata_file,
+        code_hash,
+    })
+}
+
+/// Errors that may occur during the `cargo-contract` installation phase.
+#[derive(Debug, Display, From, Error)]
+pub(crate) enum CargoContractInstallError {
+    /// IO-related error.
+    Io(io::Error),
+
+    /// Unable to install `cargo-contract`.
+    InstallationError,
+}
+
+/// Ensure `cargo-contract` exists, installing it automatically if it isn't.
+pub(crate) fn ensure_cargo_contract_exists(
+    cargo: &Path,
+    cargo_contract_version: &str,
+    progress: &ProgressBar,
+) -> Result<(), CargoContractInstallError> {
+    progress.set_message("Installing cargo-contract...");
+
+    let cargo_contract_exists = Command::new(cargo)
+        .stdout(Stdio::null())
+        .stderr(Stdio::null())
+        .args(["contract", "--version"])
+        .spawn()?
+        .wait()?;
+
+    if !cargo_contract_exists.success() {
+        let mut install_command = Command::new(cargo)
+            .stdout(Stdio::piped())
+            .stderr(Stdio::piped())
+            .args([
+                "install",
+                "cargo-contract",
+                "--git",
+                CARGO_CONTRACT_REPO,
+                "--tag",
+                &format!("v{}", cargo_contract_version),
+            ])
+            .spawn()?;
+
+        let logs = BufReader::new(install_command.stderr.take().unwrap());
+
+        for log in logs.lines() {
+            progress.println(log?);
+        }
+
+        if !install_command.wait()?.success() {
+            return Err(CargoContractInstallError::InstallationError);
+        }
+    }
+
+    Ok(())
+}
diff --git a/crates/server/Cargo.toml b/crates/server/Cargo.toml
index f68b749..03b2814 100644
--- a/crates/server/Cargo.toml
+++ b/crates/server/Cargo.toml
@@ -20,7 +20,6 @@ schemars = "0.8.12"
 serde = { version = "1.0.162", features = ["derive"] }
 serde_plain = "1.0.1"
 serde_json = "1.0.96"
-sp-core = "20.0.0"
 tracing = "0.1.37"
 tokio = { version = "1.28.1", features = ["rt-multi-thread", "macros"] }
 validator = { version = "0.16.0", features = ["derive"] }
diff --git a/crates/server/src/handlers/auth/login.rs b/crates/server/src/handlers/auth/login.rs
index 148b371..09fa1b1 100644
--- a/crates/server/src/handlers/auth/login.rs
+++ b/crates/server/src/handlers/auth/login.rs
@@ -7,6 +7,10 @@ use axum::{
     Json,
 };
 use axum_derive_error::ErrorResponse;
+use common::rpc::sp_core::{
+    sr25519::{Pair, Public, Signature},
+    Pair as _,
+};
 use db::{
     cli_token, public_key, sea_query::OnConflict, token, ActiveValue, ColumnTrait,
     DatabaseConnection, DbErr, EntityTrait, QueryFilter, QuerySelect, TransactionErrorExt,
@@ -16,10 +20,6 @@ use derive_more::{Display, Error, From};
 use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};
 use serde_json::Value;
-use sp_core::{
-    sr25519::{Pair, Public, Signature},
-    Pair as _,
-};
 
 use crate::schema::example_error;
 
@@ -183,6 +183,7 @@ mod tests {
         http::{Request, StatusCode},
     };
     use common::config::Config;
+    use common::rpc::sp_core::crypto::{AccountId32, Ss58Codec};
     use db::{
         cli_token, public_key, token::TOKEN_LENGTH, user, ActiveValue, DatabaseConnection,
         EntityTrait,
@@ -192,7 +193,6 @@ mod tests {
         thread_rng,
     };
     use serde_json::json;
-    use sp_core::crypto::{AccountId32, Ss58Codec};
     use tower::{Service, ServiceExt};
 
     const ACCOUNT_ID: &str = "5FeLhJAs4CUHqpWmPDBLeL7NLAoHsB2ZuFZ5Mk62EgYemtFj";
diff --git a/crates/server/src/handlers/build_sessions/create.rs b/crates/server/src/handlers/build_sessions/create.rs
index 401e9c4..a12c544 100644
--- a/crates/server/src/handlers/build_sessions/create.rs
+++ b/crates/server/src/handlers/build_sessions/create.rs
@@ -17,7 +17,7 @@ use validator::Validate;
 
 use crate::{auth::AuthenticatedUserId, schema::example_error, validation::ValidatedJson};
 
-/// Regular expression to match stable versions of Rust toolchain and `cargo-contract`.
+/// Regular expression to match stable versions of `cargo-contract`.
 ///
 /// Currently, this regex does not support any nightly or unstable versions of the previously mentioned tooling.
 static VERSION_REGEX: Lazy<Regex> = Lazy::new(|| {
@@ -53,11 +53,6 @@ pub(super) struct BuildSessionCreateRequest {
     #[validate(regex = "VERSION_REGEX")]
     #[schemars(example = "crate::schema::example_cargo_contract_version")]
     cargo_contract_version: String,
-
-    /// Rust tooling version.
-    #[validate(regex = "VERSION_REGEX")]
-    #[schemars(example = "crate::schema::example_rustc_version")]
-    rustc_version: String,
 }
 
 /// JSON response body.
@@ -105,7 +100,6 @@ pub(super) async fn create(
                     user_id: ActiveValue::Set(Some(current_user.id())),
                     source_code_id: ActiveValue::Set(request.source_code_id),
                     cargo_contract_version: ActiveValue::Set(request.cargo_contract_version),
-                    rustc_version: ActiveValue::Set(request.rustc_version),
                     ..Default::default()
                 })
                 .exec_with_returning(txn)
@@ -196,7 +190,6 @@ mod tests {
                     .body(Body::from_json(json!({
                         "source_code_id": source_code_id,
                         "cargo_contract_version": "3.0.0",
-                        "rustc_version": "1.69.0"
                     })))
                     .unwrap(),
             )
@@ -224,7 +217,6 @@ mod tests {
                     .body(Body::from_json(json!({
                         "source_code_id": source_code_id,
                         "cargo_contract_version": "abc-1.2.3",
-                        "rustc_version": "1.69.0"
                     })))
                     .unwrap(),
             )
@@ -250,7 +242,6 @@ mod tests {
                     .body(Body::from_json(json!({
                         "source_code_id": 123,
                         "cargo_contract_version": "3.0.0",
-                        "rustc_version": "1.69.0"
                     })))
                     .unwrap(),
             )
diff --git a/crates/server/src/handlers/build_sessions/details.rs b/crates/server/src/handlers/build_sessions/details.rs
index 70656dd..1781f5b 100644
--- a/crates/server/src/handlers/build_sessions/details.rs
+++ b/crates/server/src/handlers/build_sessions/details.rs
@@ -29,10 +29,6 @@ pub struct BuildSessionInfo {
     /// Version of `cargo-contract` used to build the contract.
     #[schemars(example = "crate::schema::example_cargo_contract_version")]
     pub cargo_contract_version: String,
-
-    /// Version of Rust toolchain used to build the contract.
-    #[schemars(example = "crate::schema::example_rustc_version")]
-    pub rustc_version: String,
 }
 
 /// Errors that may occur during the detail preview process.
@@ -73,7 +69,6 @@ pub(super) async fn details(
         .columns([
             build_session::Column::SourceCodeId,
             build_session::Column::CargoContractVersion,
-            build_session::Column::RustcVersion,
         ])
         .filter(build_session::Column::CodeHash.eq(&code_hash.0[..]))
         .order_by_desc(build_session::Column::CreatedAt)
@@ -121,7 +116,6 @@ mod tests {
             source_code_id: ActiveValue::Set(source_code_id),
             status: ActiveValue::Set(build_session::Status::New),
             cargo_contract_version: ActiveValue::Set(String::from("3.0.0")),
-            rustc_version: ActiveValue::Set(String::from("1.69.0")),
             code_hash: ActiveValue::Set(Some(vec![0; 32])),
             ..Default::default()
         })
@@ -149,7 +143,6 @@ mod tests {
 
         assert_json!(response.json().await, {
             "source_code_id": 1,
-            "rustc_version": "1.69.0",
             "cargo_contract_version": "3.0.0"
         });
     }
diff --git a/crates/server/src/handlers/build_sessions/latest.rs b/crates/server/src/handlers/build_sessions/latest.rs
index eb9fa7d..99da32a 100644
--- a/crates/server/src/handlers/build_sessions/latest.rs
+++ b/crates/server/src/handlers/build_sessions/latest.rs
@@ -138,7 +138,6 @@ mod tests {
             source_code_id: ActiveValue::Set(source_code_id),
             status: ActiveValue::Set(build_session::Status::Completed),
             cargo_contract_version: ActiveValue::Set(String::from("3.0.0")),
-            rustc_version: ActiveValue::Set(String::from("1.69.0")),
             code_hash: ActiveValue::Set(Some(vec![0; 32])),
             ..Default::default()
         })
diff --git a/crates/server/src/handlers/build_sessions/list.rs b/crates/server/src/handlers/build_sessions/list.rs
index 4f26995..36dbecb 100644
--- a/crates/server/src/handlers/build_sessions/list.rs
+++ b/crates/server/src/handlers/build_sessions/list.rs
@@ -159,7 +159,6 @@ mod tests {
             source_code_id: ActiveValue::Set(source_code_id),
             status: ActiveValue::Set(build_session::Status::Completed),
             cargo_contract_version: ActiveValue::Set(String::from("3.0.0")),
-            rustc_version: ActiveValue::Set(String::from("1.69.0")),
             code_hash: ActiveValue::Set(Some(vec![0; 32])),
             ..Default::default()
         })
@@ -173,7 +172,6 @@ mod tests {
             source_code_id: ActiveValue::Set(source_code_id),
             status: ActiveValue::Set(build_session::Status::New),
             cargo_contract_version: ActiveValue::Set(String::from("3.0.0")),
-            rustc_version: ActiveValue::Set(String::from("1.69.0")),
             ..Default::default()
         })
         .exec_with_returning(db)
diff --git a/crates/server/src/handlers/build_sessions/logs.rs b/crates/server/src/handlers/build_sessions/logs.rs
index 4c0328a..7e4b280 100644
--- a/crates/server/src/handlers/build_sessions/logs.rs
+++ b/crates/server/src/handlers/build_sessions/logs.rs
@@ -177,7 +177,6 @@ mod tests {
             source_code_id: ActiveValue::Set(source_code_id),
             status: ActiveValue::Set(build_session::Status::Completed),
             cargo_contract_version: ActiveValue::Set(String::from("3.0.0")),
-            rustc_version: ActiveValue::Set(String::from("1.69.0")),
             code_hash: ActiveValue::Set(Some(vec![0; 32])),
             ..Default::default()
         })
diff --git a/crates/server/src/handlers/build_sessions/metadata.rs b/crates/server/src/handlers/build_sessions/metadata.rs
index a124b12..848c0fe 100644
--- a/crates/server/src/handlers/build_sessions/metadata.rs
+++ b/crates/server/src/handlers/build_sessions/metadata.rs
@@ -107,7 +107,6 @@ mod tests {
             source_code_id: ActiveValue::Set(source_code_id),
             status: ActiveValue::Set(build_session::Status::Completed),
             cargo_contract_version: ActiveValue::Set(String::from("3.0.0")),
-            rustc_version: ActiveValue::Set(String::from("1.69.0")),
             code_hash: ActiveValue::Set(Some(vec![0; 32])),
             metadata: ActiveValue::Set(Some(
                 serde_json::to_vec(&json! ({
diff --git a/crates/server/src/handlers/build_sessions/status.rs b/crates/server/src/handlers/build_sessions/status.rs
index a9ec3c7..ed85e9f 100644
--- a/crates/server/src/handlers/build_sessions/status.rs
+++ b/crates/server/src/handlers/build_sessions/status.rs
@@ -114,7 +114,6 @@ mod tests {
             source_code_id: ActiveValue::Set(source_code_id),
             status: ActiveValue::Set(build_session::Status::Completed),
             cargo_contract_version: ActiveValue::Set(String::from("3.0.0")),
-            rustc_version: ActiveValue::Set(String::from("1.69.0")),
             code_hash: ActiveValue::Set(Some(vec![0; 32])),
             ..Default::default()
         })
diff --git a/crates/server/src/handlers/contracts/details.rs b/crates/server/src/handlers/contracts/details.rs
index 9fe2b15..9de8f8e 100644
--- a/crates/server/src/handlers/contracts/details.rs
+++ b/crates/server/src/handlers/contracts/details.rs
@@ -7,6 +7,10 @@ use axum::{
     Json,
 };
 use axum_derive_error::ErrorResponse;
+use common::rpc::sp_core::{
+    crypto::{AccountId32, Ss58Codec},
+    ByteArray,
+};
 use db::{
     contract, node, ColumnTrait, DatabaseConnection, DbErr, EntityTrait, QueryFilter, QuerySelect,
     TransactionErrorExt, TransactionTrait,
@@ -15,10 +19,6 @@ use derive_more::{Display, Error, From};
 use schemars::JsonSchema;
 use serde::Serialize;
 use serde_json::Value;
-use sp_core::{
-    crypto::{AccountId32, Ss58Codec},
-    ByteArray,
-};
 
 use crate::{hex_hash::HexHash, schema::example_error};
 
@@ -141,15 +141,14 @@ mod tests {
         http::{Request, StatusCode},
     };
     use common::config::Config;
+    use common::rpc::sp_core::crypto::AccountId32;
     use db::{code, contract, node, ActiveValue, DatabaseConnection, EntityTrait};
-    use sp_core::crypto::AccountId32;
     use tower::ServiceExt;
 
     async fn create_test_env(db: &DatabaseConnection) {
         let node = node::Entity::insert(node::ActiveModel {
             name: ActiveValue::Set(String::from("test")),
             url: ActiveValue::Set(String::from("ws://localhost:9944")),
-            schema: ActiveValue::Set(String::from("test")),
             confirmed_block: ActiveValue::Set(0),
             ..Default::default()
         })
diff --git a/crates/server/src/handlers/contracts/events.rs b/crates/server/src/handlers/contracts/events.rs
index e40981a..b2f703d 100644
--- a/crates/server/src/handlers/contracts/events.rs
+++ b/crates/server/src/handlers/contracts/events.rs
@@ -6,6 +6,7 @@ use axum::{
     Json,
 };
 use axum_derive_error::ErrorResponse;
+use common::rpc::sp_core::ByteArray;
 use db::{
     event, ColumnTrait, DatabaseConnection, DbErr, EntityTrait, PrimitiveDateTime, QueryFilter,
     QueryOrder, QuerySelect,
@@ -14,7 +15,6 @@ use derive_more::{Display, Error, From};
 use futures_util::TryStreamExt;
 use schemars::JsonSchema;
 use serde::Serialize;
-use sp_core::ByteArray;
 
 use super::WrappedAccountId32;
 
@@ -83,18 +83,17 @@ mod tests {
     use assert_json::assert_json;
     use axum::{body::Body, http::Request};
     use common::config::Config;
+    use common::rpc::sp_core::crypto::AccountId32;
     use db::{
         code, contract, event, node, ActiveValue, DatabaseConnection, EntityTrait, OffsetDateTime,
         PrimitiveDateTime,
     };
-    use sp_core::crypto::AccountId32;
     use tower::ServiceExt;
 
     async fn create_test_env(db: &DatabaseConnection) {
         let node = node::Entity::insert(node::ActiveModel {
             name: ActiveValue::Set(String::from("test")),
             url: ActiveValue::Set(String::from("ws://localhost:9944")),
-            schema: ActiveValue::Set(String::from("test")),
             confirmed_block: ActiveValue::Set(0),
             ..Default::default()
         })
diff --git a/crates/server/src/handlers/contracts/mod.rs b/crates/server/src/handlers/contracts/mod.rs
index 7ee8459..7366237 100644
--- a/crates/server/src/handlers/contracts/mod.rs
+++ b/crates/server/src/handlers/contracts/mod.rs
@@ -7,11 +7,12 @@ mod events;
 use std::sync::Arc;
 
 use aide::axum::{routing::get_with, ApiRouter};
+use common::rpc::sp_core::crypto::AccountId32;
 use db::DatabaseConnection;
 use schemars::JsonSchema;
 use serde::Deserialize;
-use sp_core::crypto::AccountId32;
 
+/// [`AccountId32`] wrapper for OAPI documentation purposes.
 #[derive(Deserialize, JsonSchema)]
 #[serde(transparent)]
 struct WrappedAccountId32(
diff --git a/crates/server/src/handlers/files/upload.rs b/crates/server/src/handlers/files/upload.rs
index e725392..7b72bd7 100644
--- a/crates/server/src/handlers/files/upload.rs
+++ b/crates/server/src/handlers/files/upload.rs
@@ -148,7 +148,6 @@ mod tests {
             source_code_id: ActiveValue::Set(source_code_id),
             status: ActiveValue::Set(build_session::Status::New),
             cargo_contract_version: ActiveValue::Set(String::from("3.0.0")),
-            rustc_version: ActiveValue::Set(String::from("1.69.0")),
             ..Default::default()
         })
         .exec_with_returning(db)
diff --git a/crates/server/src/handlers/keys/delete.rs b/crates/server/src/handlers/keys/delete.rs
index 12042b4..93da20f 100644
--- a/crates/server/src/handlers/keys/delete.rs
+++ b/crates/server/src/handlers/keys/delete.rs
@@ -3,6 +3,7 @@ use std::sync::Arc;
 use aide::{transform::TransformOperation, OperationIo};
 use axum::{extract::State, Extension, Json};
 use axum_derive_error::ErrorResponse;
+use common::rpc::sp_core::sr25519::Public;
 use db::{
     public_key, ColumnTrait, DatabaseConnection, DbErr, EntityTrait, QueryFilter,
     TransactionErrorExt, TransactionTrait,
@@ -10,7 +11,6 @@ use db::{
 use derive_more::{Display, Error, From};
 use schemars::JsonSchema;
 use serde::Deserialize;
-use sp_core::sr25519::Public;
 
 use crate::auth::AuthenticatedUserId;
 
@@ -73,9 +73,9 @@ mod tests {
         http::{Request, StatusCode},
     };
     use common::config::Config;
+    use common::rpc::sp_core::crypto::{AccountId32, Ss58Codec};
     use db::{public_key, token, user, ActiveValue, DatabaseConnection, EntityTrait};
     use serde_json::json;
-    use sp_core::crypto::{AccountId32, Ss58Codec};
     use tower::Service;
 
     const ACCOUNT_ID: &str = "5FeLhJAs4CUHqpWmPDBLeL7NLAoHsB2ZuFZ5Mk62EgYemtFj";
diff --git a/crates/server/src/handlers/keys/list.rs b/crates/server/src/handlers/keys/list.rs
index 43afbc4..ef84e5d 100644
--- a/crates/server/src/handlers/keys/list.rs
+++ b/crates/server/src/handlers/keys/list.rs
@@ -6,6 +6,7 @@ use axum::{
     Extension, Json,
 };
 use axum_derive_error::ErrorResponse;
+use common::rpc::sp_core::crypto::AccountId32;
 use db::{
     public_key, ColumnTrait, DatabaseConnection, DbErr, EntityTrait, QueryFilter, QuerySelect,
 };
@@ -13,7 +14,6 @@ use derive_more::{Display, Error, From};
 use futures_util::TryStreamExt;
 use schemars::JsonSchema;
 use serde::Serialize;
-use sp_core::crypto::AccountId32;
 
 use crate::{auth::AuthenticatedUserId, pagination::Pagination};
 
diff --git a/crates/server/src/handlers/keys/verify.rs b/crates/server/src/handlers/keys/verify.rs
index ae92400..aa0df93 100644
--- a/crates/server/src/handlers/keys/verify.rs
+++ b/crates/server/src/handlers/keys/verify.rs
@@ -3,6 +3,10 @@ use std::sync::Arc;
 use aide::{transform::TransformOperation, OperationIo};
 use axum::{extract::State, http::StatusCode, Extension, Json};
 use axum_derive_error::ErrorResponse;
+use common::rpc::sp_core::{
+    sr25519::{Pair, Public, Signature},
+    Pair as _,
+};
 use db::{
     public_key, user, ActiveValue, ColumnTrait, DatabaseConnection, DbErr, EntityTrait,
     QueryFilter, QuerySelect, SelectExt, TransactionErrorExt, TransactionTrait,
@@ -11,10 +15,6 @@ use derive_more::{Display, Error, From};
 use schemars::JsonSchema;
 use serde::Deserialize;
 use serde_json::Value;
-use sp_core::{
-    sr25519::{Pair, Public, Signature},
-    Pair as _,
-};
 
 use crate::{auth::AuthenticatedUserId, schema::example_error};
 
diff --git a/crates/server/src/handlers/payment/check.rs b/crates/server/src/handlers/payment/check.rs
index cbeb172..1e69cb1 100644
--- a/crates/server/src/handlers/payment/check.rs
+++ b/crates/server/src/handlers/payment/check.rs
@@ -1,16 +1,14 @@
-use std::{array::TryFromSliceError, fmt, str::FromStr, sync::Arc};
+use std::{array::TryFromSliceError, sync::Arc};
 
 use aide::{transform::TransformOperation, OperationIo};
 use axum::{extract::State, http::StatusCode, Extension, Json};
 use axum_derive_error::ErrorResponse;
-use common::{
-    hash::blake2,
-    rpc::{
-        parity_scale_codec::{self, Decode},
-        subxt::{self, ext::sp_runtime::DispatchError, OnlineClient, PolkadotConfig},
-        InvalidSchema, Schema,
-    },
-};
+use common::hash::blake2;
+use common::rpc::parity_scale_codec::Decode;
+use common::rpc::sp_core::crypto::AccountId32;
+use common::rpc::substrate_api_client::rpc::JsonrpseeClient;
+use common::rpc::substrate_api_client::Api;
+use common::rpc::{self, parity_scale_codec, substrate_api_client};
 use db::{
     node, public_key, user, ActiveValue, ColumnTrait, DatabaseConnection, DbErr, EntityTrait,
     QueryFilter, QuerySelect, SelectExt, TransactionErrorExt, TransactionTrait,
@@ -20,7 +18,8 @@ use ink_metadata::LangError;
 use schemars::JsonSchema;
 use serde::Deserialize;
 use serde_json::Value;
-use sp_core::crypto::AccountId32;
+use tokio::runtime::Handle;
+use tokio::task::JoinError;
 
 use crate::{auth::AuthenticatedUserId, schema::example_error};
 
@@ -43,14 +42,9 @@ pub(super) enum PaymentCheckError {
     /// Database-related error.
     DatabaseError(DbErr),
 
-    /// Invalid schema name is stored inside of a database.
-    Schema(InvalidSchema),
-
     /// Substrate RPC-related error.
-    Rpc(subxt::Error),
-
-    /// Contract call dispatch error.
-    Dispatch(WrappedDispatchError),
+    #[display(fmt = "substrate rpc error: {:?}", _0)]
+    Rpc(#[error(ignore)] substrate_api_client::Error),
 
     /// SCALE codec error.
     Scale(parity_scale_codec::Error),
@@ -58,6 +52,9 @@ pub(super) enum PaymentCheckError {
     /// Contract address stored inside of a database is invalid.
     ContractAddress(TryFromSliceError),
 
+    /// Unable to spawn Tokio task to handle RPC calls.
+    JoinError(JoinError),
+
     /// Contract call error.
     #[display(fmt = "unable to call the contract")]
     CallError,
@@ -93,18 +90,6 @@ pub(super) enum PaymentCheckError {
     PaidAlready,
 }
 
-/// [`DispatchError`] wrapper that provides an implementation of [`std::error::Error`] trait.
-#[derive(Debug)]
-pub(super) struct WrappedDispatchError(DispatchError);
-
-impl fmt::Display for WrappedDispatchError {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(f, "{:?}", self.0)
-    }
-}
-
-impl std::error::Error for WrappedDispatchError {}
-
 /// Generate OAPI documentation for the [`check`] handler.
 pub(super) fn docs(op: TransformOperation) -> TransformOperation {
     op.summary("Check membership payment with the provided node.")
@@ -151,38 +136,41 @@ pub(super) async fn check(
                 return Err(PaymentCheckError::InvalidKey);
             }
 
-            let (url, schema_name, contract) = node::Entity::find_by_id(request.node_id)
+            let (url, contract) = node::Entity::find_by_id(request.node_id)
                 .select_only()
-                .columns([
-                    node::Column::Url,
-                    node::Column::Schema,
-                    node::Column::PaymentContract,
-                ])
-                .into_tuple::<(String, String, Option<Vec<u8>>)>()
+                .columns([node::Column::Url, node::Column::PaymentContract])
+                .into_tuple::<(String, Option<Vec<u8>>)>()
                 .one(txn)
                 .await?
                 .ok_or(PaymentCheckError::InvalidNodeId)?;
 
             let contract = contract.ok_or(PaymentCheckError::NodeWithoutPayments)?;
 
-            let rpc = OnlineClient::<PolkadotConfig>::from_url(url).await?;
-            let schema = Schema::from_str(&schema_name)?;
-
             // Make sure this matches the ABI of the check message.
             let mut data = Vec::with_capacity(36);
             data.extend_from_slice(&blake2("check".as_bytes())[0..4]);
             data.extend_from_slice(request.account.as_ref());
 
-            let raw_response = schema
-                .call_contract(
-                    &rpc,
-                    subxt::utils::AccountId32(contract.as_slice().try_into()?),
-                    data,
-                )
-                .await?
-                .result
-                .map_err(WrappedDispatchError)?
-                .data;
+            let raw_response = tokio::task::spawn_blocking(|| {
+                Handle::current().block_on(async move {
+                    let client = JsonrpseeClient::new(&url)
+                        .map_err(substrate_api_client::Error::RpcClient)?;
+                    let api = Api::new(client).await?;
+
+                    let val = rpc::call_contract(
+                        &api,
+                        AccountId32::new(contract.as_slice().try_into()?),
+                        data,
+                    )
+                    .await?;
+
+                    Result::<_, PaymentCheckError>::Ok(val)
+                })
+            })
+            .await??
+            .result
+            .map_err(|_| PaymentCheckError::CallError)?
+            .data;
 
             let response: Result<bool, LangError> = Decode::decode(&mut &*raw_response)?;
 
diff --git a/crates/server/src/main.rs b/crates/server/src/main.rs
index aedffb4..dca1aa4 100644
--- a/crates/server/src/main.rs
+++ b/crates/server/src/main.rs
@@ -8,6 +8,9 @@
 //! Request body size limiting is necessary to ensure that you don't get overwhelmed with
 //! source code archive uploads while using a self-hosted environment.
 
+#![deny(missing_docs)]
+#![deny(clippy::missing_docs_in_private_items)]
+
 /// API authentication middleware and helpers.
 mod auth;
 
@@ -44,7 +47,7 @@ use tracing::info;
 /// API server entrypoint.
 #[tokio::main]
 async fn main() -> Result<(), anyhow::Error> {
-    let config = Config::new()?;
+    let config = Config::new(None)?;
 
     logging::init(&config);
 
diff --git a/crates/server/src/schema.rs b/crates/server/src/schema.rs
index 2a5ae7c..74c4e6f 100644
--- a/crates/server/src/schema.rs
+++ b/crates/server/src/schema.rs
@@ -1,13 +1,13 @@
 use std::fmt::Display;
 
 use axum::response::IntoResponse;
-use db::{build_session, event::EventBody};
-use serde_json::{json, Value};
-use sp_core::{
+use common::rpc::sp_core::{
     crypto::{AccountId32, Ss58Codec},
     sr25519::{Pair, Public, Signature},
     Pair as _,
 };
+use db::{build_session, event::EventBody};
+use serde_json::{json, Value};
 
 use crate::hex_hash::HexHash;
 
@@ -42,7 +42,6 @@ generate_examples!(
     database_identifier, i64, 1;
     hex_hash, HexHash, HexHash([200; 32]);
     cargo_contract_version, String, String::from("3.0.1");
-    rustc_version, String, String::from("1.70.0");
     build_session_status, build_session::Status, build_session::Status::Completed;
     log_position, Option<i64>, Some(40);
     log_entry, String, String::from("Compiling futures-util v0.3.28");
diff --git a/docs/cli.md b/docs/cli.md
index 3616efd..33bdf0d 100644
--- a/docs/cli.md
+++ b/docs/cli.md
@@ -26,10 +26,9 @@ The build process itself is done on a remote server, but the deployment process
 safe and to facilitate possible air-gapped deployments.
 
 First of all, you need to create a `Deploy.toml` file at the root of your contract source code.
-This file describes the Rust toolchain and `cargo-contract` versions that will be used during the build:
+This file describes the `cargo-contract` version that will be used during the build:
 
 ```toml
-rustc_version = "1.69.0"
 cargo_contract_version = "3.0.1"
 ```
 
@@ -60,3 +59,13 @@ patron deploy new --suri //Alice -- --password 123
 ```
 
 To get more information, invoke the deploy command with the `--help` flag.
+
+## Build
+
+You can also acquire contract's WASM blob and JSON metadata files without the deployment itself
+by using the `build` subcommand which, by default, outputs `contract.wasm` and `contract.json` files
+to the `./target/ink` directory.
+
+You can modify the output directory with `--wasm_path` and `--metadata_path` flags.
+
+See `--help` flag output for more information.
diff --git a/docs/self-hosted.md b/docs/self-hosted.md
index 708e00a..8636d9f 100644
--- a/docs/self-hosted.md
+++ b/docs/self-hosted.md
@@ -210,11 +210,10 @@ This component provides users with the information about events on-chain.
 To initially fill the database with contract and code data use the `initialize` command:
 
 ```sh
-./event_client initialize my_node wss://node.example.com:443/ astar
+./event_client initialize my_node wss://node.example.com:443/
 ```
 
-`initialize` command accepts the node name, node URL, and node schema, which is used to
-correctly communicate with the node.
+`initialize` command accepts the node name and the node URL.
 
 You may also optionally pass `--payment-address` flag to enable membership payments using a separate smart contract.
 See the ["Membership smart contract ABI"](#membership-smart-contract-abi) for more information on that.
diff --git a/flake.lock b/flake.lock
index 60413f4..e731ada 100644
--- a/flake.lock
+++ b/flake.lock
@@ -14,11 +14,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1684468982,
-        "narHash": "sha256-EoC1N5sFdmjuAP3UOkyQujSOT6EdcXTnRw8hPjJkEgc=",
+        "lastModified": 1688772518,
+        "narHash": "sha256-ol7gZxwvgLnxNSZwFTDJJ49xVY5teaSvF7lzlo3YQfM=",
         "owner": "ipetkov",
         "repo": "crane",
-        "rev": "99de890b6ef4b4aab031582125b6056b792a4a30",
+        "rev": "8b08e96c9af8c6e3a2b69af5a7fa168750fcf88e",
         "type": "github"
       },
       "original": {
@@ -48,11 +48,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1681202837,
-        "narHash": "sha256-H+Rh19JDwRtpVPAWp64F+rlEtxUWBAQW28eAi3SRSzg=",
+        "lastModified": 1689068808,
+        "narHash": "sha256-6ixXo3wt24N/melDWjq70UuHQLxGV8jZvooRanIHXw0=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "cfacdce06f30d2b68473a46042957675eebb3401",
+        "rev": "919d646de7be200f3bf08cb76ae1f09402b6f9b4",
         "type": "github"
       },
       "original": {
@@ -63,11 +63,11 @@
     },
     "nix-filter": {
       "locked": {
-        "lastModified": 1681154353,
-        "narHash": "sha256-MCJ5FHOlbfQRFwN0brqPbCunLEVw05D/3sRVoNVt2tI=",
+        "lastModified": 1687178632,
+        "narHash": "sha256-HS7YR5erss0JCaUijPeyg2XrisEb959FIct3n2TMGbE=",
         "owner": "numtide",
         "repo": "nix-filter",
-        "rev": "f529f42792ade8e32c4be274af6b6d60857fbee7",
+        "rev": "d90c75e8319d0dd9be67d933d8eb9d0894ec9174",
         "type": "github"
       },
       "original": {
@@ -78,11 +78,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1684385584,
-        "narHash": "sha256-O7y0gK8OLIDqz+LaHJJyeu09IGiXlZIS3+JgEzGmmJA=",
+        "lastModified": 1689008574,
+        "narHash": "sha256-VFMgyHDiqsGDkRg73alv6OdHJAqhybryWHv77bSCGIw=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "48a0fb7aab511df92a17cf239c37f2bd2ec9ae3a",
+        "rev": "4a729ce4b1fe5ec4fffc71c67c96aa5184ebb462",
         "type": "github"
       },
       "original": {
@@ -111,11 +111,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1684462813,
-        "narHash": "sha256-YFphDnxzXtLLExXjiR9bUVF4isI/MKiC4HMboh2ZSOc=",
+        "lastModified": 1689042658,
+        "narHash": "sha256-p7cQAFNt5kX19sZvK74CmY0nTrtujpZg6sZUiV1ntAk=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "e2ceeaa7f9334c5d732323b6fec363229da4f382",
+        "rev": "d7181bb2237035df17cab9295c95f987f5c527e6",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 64cd1c5..1005f0a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -74,7 +74,7 @@
           ];
         };
 
-        rustToolchain = pkgs.rust-bin.stable.latest.default.override {
+        rustToolchain = pkgs.rust-bin.nightly."2023-05-22".default.override {
           extensions = [
             "rustc"
             "cargo"
@@ -106,21 +106,20 @@
           });
 
         base = import ./nix/base.nix {inherit pkgs system;};
-
-        cargo-contract = import ./nix/cargo-contract.nix {
-          inherit craneLib pkgs;
-
-          version = "3.0.1";
-          sha256 = "sha256-4PeEq1iAZPm90hcAJnM5B6Bwj24vSc3X1BGcUB109n0=";
-        };
       in {
         devShell = pkgs.mkShell {
-          buildInputs =
-            [
-              rustToolchain
-            ]
-            ++ commonArgs.buildInputs
-            ++ commonArgs.nativeBuildInputs;
+          packages = [rustToolchain];
+          inputsFrom = [commonArgs];
+        };
+
+        apps.loadDockerImages = flake-utils.lib.mkApp {
+          drv = pkgs.writeShellScriptBin "load-docker-images" (let
+            mkStages = stages:
+              pkgs.lib.concatMapStringsSep
+              "\n" (stage: "docker load < ${self.packages.${system}.docker.build-stages.${stage}}")
+              stages;
+          in
+            mkStages (builtins.attrNames self.packages.${system}.docker.build-stages));
         };
 
         packages = {
@@ -132,7 +131,7 @@
             });
 
           docker = {
-            ink-builder = import ./nix/ink-builder.nix {inherit base cargo-contract pkgs;};
+            build-stages = import ./nix/build-stages.nix {inherit base pkgs;};
             server = import ./nix/server.nix {
               inherit base pkgs;
               bins = self.packages.${system}.default;
diff --git a/nix/build-stages.nix b/nix/build-stages.nix
new file mode 100644
index 0000000..10aad1a
--- /dev/null
+++ b/nix/build-stages.nix
@@ -0,0 +1,54 @@
+{
+  base,
+  pkgs,
+}: let
+  mkStageImage = stage: script:
+    pkgs.dockerTools.buildImage {
+      name = "stage-${stage}";
+      tag = "latest";
+
+      fromImage = base;
+
+      config = {
+        Env = [
+          "BUILD_SESSION_TOKEN"
+          "SOURCE_CODE_URL"
+          "API_SERVER_URL"
+        ];
+
+        WorkingDir = "/contract";
+
+        Cmd = ["${pkgs.writeShellScript "stage-${stage}-script" script}"];
+      };
+    };
+in {
+  unarchive = mkStageImage "unarchive" (let
+    inherit (pkgs) coreutils;
+
+    curl = pkgs.lib.getExe pkgs.curl;
+    unzip = pkgs.lib.getExe pkgs.unzip;
+  in ''
+    set -e
+
+    dst=$(${coreutils}/bin/mktemp)
+
+    ${curl} "$SOURCE_CODE_URL" \
+      -o $dst
+
+    ${unzip} $dst
+
+    shopt -s globstar
+    for i in **/*.rs; do
+      ${curl} -f "$API_SERVER_URL"/files/upload/"$BUILD_SESSION_TOKEN" \
+        -F "$i"="@$i"
+    done
+
+    ${curl} -f "$API_SERVER_URL"/files/seal/"$BUILD_SESSION_TOKEN" \
+      -X POST
+  '');
+
+  move = mkStageImage "move" ''
+    mv /contract/target/ink/*.wasm /contract/target/ink/main.wasm
+    mv /contract/target/ink/*.json /contract/target/ink/main.json
+  '';
+}
diff --git a/nix/cargo-contract.nix b/nix/cargo-contract.nix
deleted file mode 100644
index 6352e24..0000000
--- a/nix/cargo-contract.nix
+++ /dev/null
@@ -1,28 +0,0 @@
-{
-  craneLib,
-  pkgs,
-  sha256,
-  version,
-}: {
-  inherit version;
-
-  package = craneLib.buildPackage {
-    inherit version;
-
-    pname = "cargo-contract";
-
-    src = pkgs.fetchFromGitHub {
-      inherit sha256;
-
-      owner = "paritytech";
-      repo = "cargo-contract";
-      rev = "v${version}";
-    };
-
-    nativeBuildInputs = with pkgs; [
-      cmake
-    ];
-
-    doCheck = false;
-  };
-}
diff --git a/nix/ink-builder.nix b/nix/ink-builder.nix
deleted file mode 100644
index 67efe38..0000000
--- a/nix/ink-builder.nix
+++ /dev/null
@@ -1,86 +0,0 @@
-{
-  base,
-  cargo-contract,
-  pkgs,
-}: let
-  script = pkgs.writeShellScript "builder" ''
-    set -e
-
-    rustup toolchain install $RUST_VERSION \
-      --profile minimal \
-      --component rust-src
-
-    if [ "$CARGO_CONTRACT_VERSION" = "${cargo-contract.version}" ]; then
-      mkdir -p /root/.cargo/bin
-      ln -s ${pkgs.lib.getExe cargo-contract.package} /root/.cargo/bin/cargo-contract
-    else
-      CARGO_TARGET_DIR=/root/cargo-contract cargo install cargo-contract \
-        --git https://github.com/paritytech/cargo-contract \
-        --tag v"$CARGO_CONTRACT_VERSION"
-
-      rm -rf /root/cargo-contract
-    fi
-
-    mkdir source
-
-    curl "$SOURCE_CODE_URL" \
-      -o source.zip
-
-    unzip source.zip \
-      -d source
-
-    cd source
-
-    shopt -s globstar
-    for i in **/*.rs; do
-      curl -f "$API_SERVER_URL"/files/upload/"$BUILD_SESSION_TOKEN" \
-        -F "$i"="@$i"
-    done
-
-    curl -f "$API_SERVER_URL"/files/seal/"$BUILD_SESSION_TOKEN" \
-      -X POST
-
-    CARGO_TARGET_DIR=/root/artifacts cargo contract build \
-      --release &> >(${pkgs.lib.getExe pkgs.ansifilter})
-
-    mv /root/artifacts/ink/*.wasm /root/artifacts/ink/main.wasm
-    mv /root/artifacts/ink/*.json /root/artifacts/ink/main.json
-  '';
-in
-  pkgs.dockerTools.buildImage {
-    name = "ink-builder";
-    tag = "latest";
-
-    fromImage = base;
-
-    copyToRoot = pkgs.buildEnv {
-      name = "image-root";
-      pathsToLink = ["/bin" "/lib"];
-      paths = with pkgs; [
-        rustup
-        gcc
-        curl
-        unzip
-        git
-        binaryen
-      ];
-    };
-
-    config = {
-      Env = [
-        "CARGO_CONTRACT_VERSION"
-        "RUST_VERSION"
-        "SOURCE_CODE_URL"
-        "BUILD_SESSION_TOKEN"
-        "API_SERVER_URL"
-      ];
-
-      Volumes = {
-        "/root" = {};
-      };
-
-      WorkingDir = "/root";
-
-      Cmd = ["${script}"];
-    };
-  }