diff --git a/.circleci/config.yml b/.circleci/config.yml
deleted file mode 100644
index 9a56ee7..0000000
--- a/.circleci/config.yml
+++ /dev/null
@@ -1,54 +0,0 @@
-version: 2
-jobs:
-  build:
-    working_directory: /root/project
-    docker:
-      - image: drevops/ci-runner:24.11.0
-        environment:
-          COMPOSER_ALLOW_SUPERUSER: 1
-    steps:
-      - checkout
-      - setup_remote_docker
-      - run:
-          name: Validate Composer configuration
-          command: composer validate --ansi --strict
-      - run:
-          name: Start containers
-          command: docker compose up -d --build
-      - run:
-          name: Copy codebase into container
-          command: docker cp -L . $(docker compose ps -q phpserver):/app/
-      - run:
-          name: Install dev dependencies
-          command: docker compose exec phpserver composer install --ansi --no-suggest
-      - run:
-          name: Lint code
-          command: docker compose exec phpserver composer lint
-      - run:
-          name: Restart server with Xdebug enabled
-          command: XDEBUG_ENABLE=true docker compose up -d phpserver
-      - run:
-          name: Run tests with PHPUnit
-          command: docker compose exec -T -e XDEBUG_MODE=coverage phpserver vendor/bin/phpunit
-      - run:
-          name: Run tests with Behat
-          command: docker compose exec -T -e XDEBUG_MODE=coverage phpserver vendor/bin/behat
-      - run:
-          name: Process test logs and artifacts
-          command: |
-            mkdir -p /tmp/test_results
-            mkdir -p /tmp/artifacts
-            if docker compose ps --services --filter "status=running" | grep -q phpserver && docker compose exec phpserver test -d /app/.logs; then
-              docker compose cp phpserver:/app/.logs/. "/tmp/artifacts/"
-              if docker compose exec -T phpserver sh -c 'test -d /app/.logs/test_results'; then
-                 docker compose cp phpserver:/app/.logs/test_results/. "/tmp/test_results/"
-              fi
-            fi
-          when: always
-      - store_test_results:
-          path: /tmp/test_results
-      - store_artifacts:
-          path: /tmp/artifacts
-      - run:
-          name: Upload code coverage reports to Codecov
-          command: if [ -d /tmp/artifacts/coverage ]; then codecov -Z -s /tmp/artifacts/coverage; fi
diff --git a/.gitattributes b/.gitattributes
index 25ecf3a..0bf0c4c 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,6 +1,5 @@
 # Ignore files for distribution archives.
 
-/.circleci                            export-ignore
 /.editorconfig                        export-ignore
 /.gitattributes                       export-ignore
 /.github                              export-ignore
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..2796898
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,94 @@
+name: Test
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+      - 'feature/**'
+  workflow_dispatch:
+    inputs:
+      enable_terminal:
+        type: boolean
+        description: 'Enable terminal session.'
+        required: false
+        default: false
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Set up Docker Compose
+        run: docker compose up -d --build
+
+      - name: Copy codebase into container
+        run: |
+          container_id="$(docker compose ps -q phpserver)"
+          docker cp -L . "${container_id}":/app/
+
+      - name: Install Composer dependencies
+        run: docker compose exec phpserver composer install --ansi --no-suggest
+
+      - name: Lint code
+        run: docker compose exec phpserver composer lint
+        continue-on-error: ${{ vars.CI_LINT_IGNORE_FAILURE == '1' }}
+
+      - name: Restart server with Xdebug enabled
+        run: XDEBUG_ENABLE=true docker compose up -d phpserver
+
+      - name: Run tests with PHPUnit
+        run: docker compose exec -T -e XDEBUG_MODE=coverage phpserver vendor/bin/phpunit
+        continue-on-error: ${{ vars.CI_TEST_IGNORE_FAILURE == '1' }}
+
+      - name: Run tests with Behat
+        run: docker compose exec -T -e XDEBUG_MODE=coverage phpserver vendor/bin/behat
+        continue-on-error: ${{ vars.CI_TEST_IGNORE_FAILURE == '1' }}
+
+      - name: Process test logs and artifacts
+        run: |
+          mkdir -p /tmp/logs
+          if docker compose ps --services --filter "status=running" | grep -q phpserver && docker compose exec phpserver test -d /app/.logs; then
+            docker compose cp phpserver:/app/.logs/. "/tmp/logs/"
+          fi
+
+      - name: Upload artifacts
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: artifacts
+          path: /tmp/logs
+
+      - name: Upload logs as artifacts
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: logs
+          path: /tmp/logs
+          include-hidden-files: true
+          if-no-files-found: error
+
+      - name: Upload coverage report to Codecov
+        uses: codecov/codecov-action@v4
+        if: ${{ env.CODECOV_TOKEN != '' }}
+        with:
+          files: |
+            /tmp/logs/coverage/behat/cobertura.xml
+            /tmp/logs/coverage/phpunit/cobertura.xml
+          fail_ci_if_error: true
+          token: ${{ secrets.CODECOV_TOKEN }}
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+
+      - name: Setup tmate session
+        if: ${{ !cancelled() && github.event.inputs.enable_terminal }}
+        uses: mxschmitt/action-tmate@v3
+        timeout-minutes: 5