diff --git a/.github/workflows/backend-ci.yaml b/.github/workflows/backend-ci.yaml
new file mode 100644
index 0000000..baf8c1f
--- /dev/null
+++ b/.github/workflows/backend-ci.yaml
@@ -0,0 +1,33 @@
+name: Backend CI
+
+on:
+    push:
+        branches:
+            - '[0-9]+.[0-9]+'
+    pull_request: ~
+    workflow_dispatch: ~
+
+jobs:
+    cs-fix:
+        name: Run code style check
+        runs-on: "ubuntu-26.04"
+        strategy:
+            matrix:
+                php:
+                    - '7.4'
+        steps:
+            - uses: actions/checkout@v7
+
+            - uses: ibexa/gh-workflows/actions/composer-install@main
+              with:
+                  php-version: ${{ matrix.php }}
+                  gh-client-id: ${{ secrets.AUTOMATION_CLIENT_ID }}
+                  gh-client-secret: ${{ secrets.AUTOMATION_CLIENT_SECRET }}
+                  satis-network-key: ${{ secrets.SATIS_NETWORK_KEY }}
+                  satis-network-token: ${{ secrets.SATIS_NETWORK_TOKEN }}
+
+            - name: Run code style check
+              shell: bash
+              run: |
+                  set -euo pipefail
+                  composer run-script check-cs -- --format=checkstyle | cs2pr
diff --git a/.github/workflows/pr-assign.yaml b/.github/workflows/pr-assign.yaml
deleted file mode 100644
index 302423e..0000000
--- a/.github/workflows/pr-assign.yaml
+++ /dev/null
@@ -1,10 +0,0 @@
-name: Assign Pull Request to maintainers
-
-on:
-    pull_request_target:
-
-jobs:
-    assign:
-        uses: ibexa/gh-workflows/.github/workflows/pr-assign.yml@main
-        secrets:
-            robot-token: ${{ secrets.EZROBOT_PAT }}
diff --git a/composer.json b/composer.json
index 455807f..3bce331 100644
--- a/composer.json
+++ b/composer.json
@@ -35,10 +35,10 @@
     "require-dev": {
         "ibexa/code-style": "^1.0",
         "ibexa/doctrine-schema": "~4.6.0@dev",
-        "friendsofphp/php-cs-fixer": "^3.0",
-        "phpunit/phpunit": "^6.4 || ^7.0"
+        "friendsofphp/php-cs-fixer": "^3.0"
     },
     "scripts": {
+        "check-cs": "@fix-cs --dry-run",
         "fix-cs": "php-cs-fixer fix --config=.php-cs-fixer.php -v --show-progress=dots"
     },
     "extra": {
diff --git a/src/bundle/DependencyInjection/Compiler/CronJobCompilerPass.php b/src/bundle/DependencyInjection/Compiler/CronJobCompilerPass.php
index 9c5c447..d0af13e 100644
--- a/src/bundle/DependencyInjection/Compiler/CronJobCompilerPass.php
+++ b/src/bundle/DependencyInjection/Compiler/CronJobCompilerPass.php
@@ -4,6 +4,7 @@
  * @copyright Copyright (C) Ibexa AS. All rights reserved.
  * @license For full copyright and license information view LICENSE file distributed with this source code.
  */
+
 namespace Ibexa\Bundle\Cron\DependencyInjection\Compiler;
 
 use Ibexa\Bundle\Cron\Registry\CronJobsRegistry;
diff --git a/src/bundle/DependencyInjection/IbexaCronExtension.php b/src/bundle/DependencyInjection/IbexaCronExtension.php
index 06db718..f6f0e5f 100644
--- a/src/bundle/DependencyInjection/IbexaCronExtension.php
+++ b/src/bundle/DependencyInjection/IbexaCronExtension.php
@@ -4,6 +4,7 @@
  * @copyright Copyright (C) Ibexa AS. All rights reserved.
  * @license For full copyright and license information view LICENSE file distributed with this source code.
  */
+
 namespace Ibexa\Bundle\Cron\DependencyInjection;
 
 use Symfony\Component\Config\FileLocator;
diff --git a/src/bundle/IbexaCronBundle.php b/src/bundle/IbexaCronBundle.php
index 839d4a0..b993ae7 100644
--- a/src/bundle/IbexaCronBundle.php
+++ b/src/bundle/IbexaCronBundle.php
@@ -4,6 +4,7 @@
  * @copyright Copyright (C) Ibexa AS. All rights reserved.
  * @license For full copyright and license information view LICENSE file distributed with this source code.
  */
+
 namespace Ibexa\Bundle\Cron;
 
 use Ibexa\Bundle\Cron\DependencyInjection\Compiler\CronJobCompilerPass;
diff --git a/src/bundle/Registry/CronJobsRegistry.php b/src/bundle/Registry/CronJobsRegistry.php
index a40cd95..6c8db44 100644
--- a/src/bundle/Registry/CronJobsRegistry.php
+++ b/src/bundle/Registry/CronJobsRegistry.php
@@ -4,6 +4,7 @@
  * @copyright Copyright (C) Ibexa AS. All rights reserved.
  * @license For full copyright and license information view LICENSE file distributed with this source code.
  */
+
 namespace Ibexa\Bundle\Cron\Registry;
 
 use Cron\Job\ShellJob;