diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
new file mode 100644
index 0000000..daa623a
--- /dev/null
+++ b/.github/workflows/ci.yaml
@@ -0,0 +1,99 @@
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    types: [opened, synchronize, reopened, ready_for_review]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  code_quality:
+    name: Code Quality
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: 8.2
+          tools: symfony-cli
+
+      - name: Install Composer dependencies
+        run: symfony composer install --prefer-dist --no-interaction --no-progress
+
+      - name: Run Easy Coding Standard
+        run: symfony php vendor/bin/ecs
+
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+          # Minimum supported dependencies with the latest and oldest PHP version
+          - PHP_VERSION: '8.1'
+            COMPOSER_FLAGS: --prefer-stable --prefer-lowest
+            SYMFONY_VERSION: '6.4'
+          - PHP_VERSION: '8.1'
+            COMPOSER_FLAGS: --prefer-stable --prefer-lowest
+            SYMFONY_VERSION: '7.0'
+
+          # Latest 6.4 stable releases
+          - PHP_VERSION: '8.1'
+            SYMFONY_VERSION: '6.4'
+          - PHP_VERSION: '8.2'
+            SYMFONY_VERSION: '6.4'
+          - PHP_VERSION: '8.3'
+            SYMFONY_VERSION: '6.4'
+
+          # Latest 7.0 stable releases
+          - PHP_VERSION: '8.1'
+            SYMFONY_VERSION: '7.0'
+          - PHP_VERSION: '8.2'
+            SYMFONY_VERSION: '7.0'
+          - PHP_VERSION: '8.3'
+            SYMFONY_VERSION: '7.0'
+
+          # Latest 7.x development releases
+          - PHP_VERSION: '8.1'
+            SYMFONY_VERSION: '7.*'
+            STABILITY: dev
+          - PHP_VERSION: '8.2'
+            SYMFONY_VERSION: '7.*'
+            STABILITY: dev
+          - PHP_VERSION: '8.2'
+            SYMFONY_VERSION: '7.*'
+            STABILITY: dev
+    env:
+      SYMFONY_REQUIRE: ${{ matrix.config.SYMFONY_VERSION }}
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.config.PHP_VERSION }}
+          tools: symfony-cli
+
+      - name: Install globally Symfony Flex
+        run: |
+          symfony composer global require --no-progress --no-scripts --no-plugins symfony/flex
+          symfony composer global config --no-plugins allow-plugins.symfony/flex true
+
+      - name: Configure Composer minimum stability
+        if: matrix.config.STABILITY
+        run: symfony composer config minimum-stability ${{ matrix.config.STABILITY }}
+
+      - name: Install Composer dependencies
+        run: symfony composer update ${{ matrix.config.COMPOSER_FLAGS }} --prefer-dist --no-interaction --no-progress
+
+      - name: Run PHPStan
+        run: symfony php vendor/bin/phpstan analyze
+
+      - name: Run PHPUnit
+        run: symfony php vendor/bin/phpunit
\ No newline at end of file
diff --git a/composer.json b/composer.json
index fbb3ba3..1fd7275 100644
--- a/composer.json
+++ b/composer.json
@@ -26,6 +26,6 @@
     "require-dev": {
         "phpstan/phpstan": "^1.11",
         "symplify/easy-coding-standard": "^12.1",
-        "phpunit/phpunit": "^11.1"
+        "phpunit/phpunit": "^10.5 || ^11.1"
     }
 }
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 6403fa4..4d58ef9 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!-- https://phpunit.readthedocs.io/en/latest/configuration.html -->
 <phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/11.1/phpunit.xsd" backupGlobals="false" colors="true"
+         xsi:noNamespaceSchemaLocation="vendor/phpunit/phpunit/phpunit.xsd" backupGlobals="false" colors="true"
          bootstrap="vendor/autoload.php">
     <php>
         <ini name="display_errors" value="1"/>
diff --git a/src/.gitkeep b/src/.gitkeep
new file mode 100644
index 0000000..e69de29