diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..2071596
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,35 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+env:
+  DEVELOPER_DIR: /Applications/Xcode_14.3.1.app
+
+jobs:
+  build:
+    name: Build
+    runs-on: macos-13
+    steps:
+      - uses: actions/checkout@v3
+      - name: Build
+        run: set -o pipefail && make build-library | xcpretty
+  
+  test:
+    name: Test
+    runs-on: macos-13
+    steps:
+      - uses: actions/checkout@v3
+      - name: Test
+        run: set -o pipefail && make test-library | xcpretty
+
+  build-example:
+    name: Build Example app
+    runs-on: macos-13
+    steps:
+      - uses: actions/checkout@v3
+      - name: Build
+        run: set -o pipefail && make build-example | xcpretty
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..68f3804
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,32 @@
+WORKSPACE_PATH := SwiftUIChart.xcworkspace
+
+LIBRARY_SCHEME := "SwiftUI Chart"
+EXAMPLE_APP_SCHEME := Example
+
+DESTINATION_TARGET := platform="iOS Simulator,name=iPhone 14 Pro,OS=16.4"
+
+
+.PHONY: open
+open:
+	open ${WORKSPACE_PATH}
+
+.PHONY: build-library
+build-library:
+	@xcodebuild build \
+		-workspace ${WORKSPACE_PATH} \
+		-scheme ${LIBRARY_SCHEME} \
+		-destination ${DESTINATION_TARGET}
+
+.PHONY: test-library
+test-library:
+	@xcodebuild test \
+		-workspace ${WORKSPACE_PATH} \
+		-scheme ${LIBRARY_SCHEME} \
+		-destination ${DESTINATION_TARGET}
+
+.PHONY: build-example
+build-example:
+	@xcodebuild build \
+		-workspace ${WORKSPACE_PATH} \
+		-scheme ${EXAMPLE_APP_SCHEME} \
+		-destination ${DESTINATION_TARGET}
diff --git a/README.md b/README.md
index 4f47b6e..29d99af 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# SwiftUI Chart
+# SwiftUI Chart [![CI](https://github.com/mercari/swiftui-chart/actions/workflows/ci.yml/badge.svg?branch=main)](https://github.com/mercari/swiftui-chart/actions/workflows/ci.yml)
 
 This is a library to build charts in SwiftUI. This enables you to build charts with SwiftUI primitive `View` or `Shape` components, and simple declarative APIs.
 
diff --git a/SwiftUIChart.xctestplan b/SwiftUIChart.xctestplan
new file mode 100644
index 0000000..38b183d
--- /dev/null
+++ b/SwiftUIChart.xctestplan
@@ -0,0 +1,31 @@
+{
+  "configurations" : [
+    {
+      "id" : "7C60ABA9-5C92-4774-90CC-FF681D51F465",
+      "name" : "Configuration 1",
+      "options" : {
+
+      }
+    }
+  ],
+  "defaultOptions" : {
+    "testTimeoutsEnabled" : true
+  },
+  "testTargets" : [
+    {
+      "target" : {
+        "containerPath" : "container:",
+        "identifier" : "ChartCoreTests",
+        "name" : "ChartCoreTests"
+      }
+    },
+    {
+      "target" : {
+        "containerPath" : "container:",
+        "identifier" : "LineChartTests",
+        "name" : "LineChartTests"
+      }
+    }
+  ],
+  "version" : 1
+}
diff --git a/SwiftUIChart.xcworkspace/xcshareddata/xcschemes/SwiftUI Chart.xcscheme b/SwiftUIChart.xcworkspace/xcshareddata/xcschemes/SwiftUI Chart.xcscheme
new file mode 100644
index 0000000..5d55a38
--- /dev/null
+++ b/SwiftUIChart.xcworkspace/xcshareddata/xcschemes/SwiftUI Chart.xcscheme	
@@ -0,0 +1,85 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1430"
+   version = "1.7">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "ChartCore"
+               BuildableName = "ChartCore"
+               BlueprintName = "ChartCore"
+               ReferencedContainer = "container:">
+            </BuildableReference>
+         </BuildActionEntry>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "LineChart"
+               BuildableName = "LineChart"
+               BlueprintName = "LineChart"
+               ReferencedContainer = "container:">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <TestPlans>
+         <TestPlanReference
+            reference = "container:SwiftUIChart.xctestplan"
+            default = "YES">
+         </TestPlanReference>
+      </TestPlans>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "ChartCore"
+            BuildableName = "ChartCore"
+            BlueprintName = "ChartCore"
+            ReferencedContainer = "container:">
+         </BuildableReference>
+      </MacroExpansion>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>