diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000000000000000000000000000000000000..9ab59b180fb670006ac910a2bc4524a1376dcea0
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,15 @@
+
+# Ignore developer files when exporting
+.gitattributes         export-ignore
+.gitignore             export-ignore
+.gitlab-ci.yml         export-ignore
+.phive                 export-ignore
+captainhook.json       export-ignore
+phpcs.xml.dist         export-ignore
+phpstan-baseline.neon  export-ignore
+phpstan.dist.neon      export-ignore
+phpunit.dist.xml       export-ignore
+tests                  export-ignore
+
+# Explicitly set file type and line endings for PHP files, improves git diff output
+*.php     text eol=lf diff=php
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index 5d49cc71d98b16e2ed3cc08be94e85f83584b1e5..a708841abb3c83ea2ba84c9f3a1fb8966eea8e46 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,11 @@ tools/
 phpstan.neon
 .phpunit.result.cache
 phpunit.xml
+
+tools/
+
+phpstan.neon
+
+.phpunit.result.cache
+
+phpunit.xml
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index b8d20acb6c365ad8036a7b36d47dabd876d08efa..b5a64b401e554341447c74d7cf93a89ac95a3fdb 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,3 +1,17 @@
 include:
-  - project: 'quiqqer/stabilization/semantic-release'
-    file: '/ci-templates/.gitlab-ci.yml'
+  - component: dev.quiqqer.com/quiqqer/stabilization/ci-cd-components/quiqqer-package-bundle/quiqqer-package-bundle@main
+
+# Remove the entire phpunit-php8.1 block, to allow PHPUnit to run on PHP 8.1 in your pipeline
+phpunit-php8.1:
+  rules:
+    - when: never
+
+# Remove the entire phpunit-php8.2 block, to allow PHPUnit to run on PHP 8.2 in your pipeline
+phpunit-php8.2:
+  rules:
+    - when: never
+
+# Remove the entire phpunit-php8.3 block, to allow PHPUnit to run on PHP 8.3 in your pipeline
+phpunit-php8.3:
+  rules:
+    - when: never
\ No newline at end of file
diff --git a/.phive/phars.xml b/.phive/phars.xml
index a1315a09b4adad780a9c5e52f74835c708c5c7d5..63a030f34ebaa167a4ac0c278a66d42d6f1d11e6 100644
--- a/.phive/phars.xml
+++ b/.phive/phars.xml
@@ -1,4 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phive xmlns="https://phar.io/phive">
-  <phar name="phpstan" version="^1.10.67" installed="1.10.67" location="./tools/phpstan" copy="false"/>
+  <phar name="phpstan" version="1.11.1" installed="1.11.1" location="./tools/phpstan" copy="false"/>
+  <phar name="phpunit" version="^10.5.20" installed="10.5.20" location="./tools/phpunit" copy="false"/>
+  <phar name="phpcs" version="^3.10.1" installed="3.10.1" location="./tools/phpcs" copy="false"/>
+  <phar name="phpcbf" version="^3.10.1" installed="3.10.1" location="./tools/phpcbf" copy="false"/>
+  <phar name="captainhook" version="^5.23.0" installed="5.23.0" location="./tools/captainhook" copy="false"/>
 </phive>
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 0000000000000000000000000000000000000000..4a69a59b440e5beec561eca1e341509bd5a18688
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,3 @@
+# Contributing
+
+This package follows the [QUIQQER contribution guidelines](https://dev.quiqqer.com/quiqqer/stabilization/documentation/-/wikis/home).
\ No newline at end of file
diff --git a/captainhook.json b/captainhook.json
new file mode 100644
index 0000000000000000000000000000000000000000..30f10640ec4ca996d2989dfc2c17c4fb7136ab3d
--- /dev/null
+++ b/captainhook.json
@@ -0,0 +1,16 @@
+{
+  "config": {
+    "bootstrap": "tests/captainhook-bootstrap.php"
+  },
+  "pre-commit": {
+    "enabled": true,
+    "actions": [
+      {
+        "action": "\\CaptainHook\\App\\Hook\\PHP\\Action\\Linting"
+      },
+      {
+        "action": "composer test"
+      }
+    ]
+  }
+}
\ No newline at end of file
diff --git a/composer.json b/composer.json
index 7f5dab4ace110ee21a5c881703cf423c4a57ae78..f797da0bacaadd6c74b108cc4b05283cccc69c20 100644
--- a/composer.json
+++ b/composer.json
@@ -1,28 +1,70 @@
 {
-  "name": "quiqqer/ckeditor4",
-  "type": "quiqqer-module",
-  "description": "CKEditor for the QUIQQER CMS - enable the ckeditor for quiqqer",
-  "license": "GPL-2.0-or-later",
-  "authors": [
-    {
-      "name": "Henning Leutz",
-      "email": "leutz@pcsg.de",
-      "homepage": "https://www.pcsg.de",
-      "role": "Developer"
+    "name": "quiqqer/ckeditor4",
+    "type": "quiqqer-module",
+    "description": "CKEditor for the QUIQQER CMS - enable the ckeditor for quiqqer",
+    "license": "GPL-2.0-or-later",
+    "authors": [
+        {
+            "name": "Henning Leutz",
+            "email": "leutz@pcsg.de",
+            "homepage": "https://www.pcsg.de",
+            "role": "Developer"
+        }
+    ],
+    "support": {
+        "email": "support@pcsg.de"
+    },
+    "require": {
+        "quiqqer/core": "^2",
+        "quiqqer/qui": "^1",
+        "ckeditor/ckeditor": ">=4.16.0 <4.22.0"
+    },
+    "autoload": {
+        "psr-4": {
+            "QUI\\Ckeditor\\": "src/QUI/Ckeditor/",
+            "QUI\\Ckeditor\\Plugins\\": "src/QUI/Ckeditor/Plugins/"
+        }
+    },
+    "scripts": {
+        "test": [
+            "@dev:lint",
+            "@dev:phpunit"
+        ],
+        "dev:phpunit": "./tools/phpunit",
+        "dev:lint": [
+            "@dev:lint:phpstan",
+            "@dev:lint:style"
+        ],
+        "dev:lint:phpstan": "./tools/phpstan",
+        "dev:lint:style": "./tools/phpcs",
+        "dev:lint:style:fix": "./tools/phpcbf",
+        "dev:init": [
+            "@dev:init:check-requirements",
+            "@dev:init:tools",
+            "@dev:init:git-hooks"
+        ],
+        "dev:init:check-requirements": [
+            "which composer > /dev/null || (echo 'Error: composer has to be globally installed'; exit 1)",
+            "which phive > /dev/null || (echo 'Error: PHIVE has to be globally installed'; exit 1)"
+        ],
+        "dev:init:tools": "phive install --temporary",
+        "dev:init:git-hooks": "./tools/captainhook install --only-enabled --force"
+    },
+    "scripts-aliases": {
+        "test": [
+            "dev:test"
+        ]
+    },
+    "scripts-descriptions": {
+        "test": "Runs linting, static analysis, and unit tests.",
+        "dev:phpunit": "Run PHPUnit test suites",
+        "dev:lint": "Run PHPStan and code style check",
+        "dev:lint:phpstan": "Run PHPStan",
+        "dev:lint:style": "Run code style check (PHP_CodeSniffer)",
+        "dev:lint:style:fix": "Try to fix code style errors automatically",
+        "dev:init": "Initialize the developer tooling (tools and git hooks)",
+        "dev:init:check-requirements": "Check if the necessary requirements are met",
+        "dev:init:tools": "Install all developer tools (requires PHIVE)",
+        "dev:init:git-hooks": "Install all git hooks (may require tools to be installed)"
     }
-  ],
-  "support": {
-    "email": "support@pcsg.de"
-  },
-  "require": {
-    "quiqqer/core": "^2",
-    "quiqqer/qui": "^1",
-    "ckeditor/ckeditor": ">=4.16.0 <4.22.0"
-  },
-  "autoload": {
-    "psr-4": {
-      "QUI\\Ckeditor\\": "src/QUI/Ckeditor/",
-      "QUI\\Ckeditor\\Plugins\\": "src/QUI/Ckeditor/Plugins/"
-    }
-  }
-}
+}
\ No newline at end of file
diff --git a/phpunit.dist.xml b/phpunit.dist.xml
new file mode 100644
index 0000000000000000000000000000000000000000..f6c7becf0c12757beb871a9333e2d81e02aa7cae
--- /dev/null
+++ b/phpunit.dist.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit bootstrap="tests/phpunit-bootstrap.php">
+    <testsuites>
+        <testsuite name="Tests">
+            <directory>tests/</directory>
+        </testsuite>
+    </testsuites>
+</phpunit>
diff --git a/tests/captainhook-bootstrap.php b/tests/captainhook-bootstrap.php
new file mode 100644
index 0000000000000000000000000000000000000000..1b61b73a71ef5fb804addf29a4266548612c8cf0
--- /dev/null
+++ b/tests/captainhook-bootstrap.php
@@ -0,0 +1,3 @@
+<?php
+
+// This file is supposed to be empty, see https://github.com/captainhookphp/captainhook/issues/248
diff --git a/tests/phpunit-bootstrap.php b/tests/phpunit-bootstrap.php
new file mode 100644
index 0000000000000000000000000000000000000000..eca92fd67bed8ae4ec424ed82d300119d792f042
--- /dev/null
+++ b/tests/phpunit-bootstrap.php
@@ -0,0 +1,11 @@
+<?php
+
+if (!defined('QUIQQER_SYSTEM')) {
+    define('QUIQQER_SYSTEM', true);
+}
+
+if (!defined('QUIQQER_AJAX')) {
+    define('QUIQQER_AJAX', true);
+}
+
+require_once __DIR__ . '/../../../../bootstrap.php';