diff --git a/.gitattributes b/.gitattributes
index eee1915..5b12c69 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,12 +1,11 @@
 /.ddev export-ignore
 /.github export-ignore
+/Tests export-ignore
 /.editorconfig export-ignore
 /.gitignore export-ignore
 /captainhook.json export-ignore
 /composer-dependency-analyser.php export-ignore
+/composer-unused.php export-ignore
 /eslint.config.mjs export-ignore
 /package.json export-ignore
-/php-cs-fixer.php export-ignore
-/phpstan.neon export-ignore
-/phpstan-baseline.neon export-ignore
-/rector.php export-ignore
+/version-bumper.yaml export-ignore
diff --git a/.gitignore b/.gitignore
index 1b28fd9..a79509a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,7 +3,4 @@
 /public
 /var
 /vendor
-/.php-cs-fixer.cache
 /package-lock.json
-/php-cs-fixer.xml
-/phpstan.xml
diff --git a/Classes/Page/AssetRenderer.php b/Classes/Page/AssetRenderer.php
index 04d3e50..f0d733a 100644
--- a/Classes/Page/AssetRenderer.php
+++ b/Classes/Page/AssetRenderer.php
@@ -10,6 +10,7 @@
 
 readonly class AssetRenderer extends \TYPO3\CMS\Core\Page\AssetRenderer
 {
+    #[\Override]
     public function renderStyleSheets(bool $priority = false, string $endingSlash = '', ?ConsumableNonce $nonce = null): string
     {
         $inlineStyles = $this->assetCollector->getInlineStyleSheets();
diff --git a/Classes/ViewHelpers/Asset/CssViewHelper.php b/Classes/ViewHelpers/Asset/CssViewHelper.php
index 6eb947c..1af98eb 100644
--- a/Classes/ViewHelpers/Asset/CssViewHelper.php
+++ b/Classes/ViewHelpers/Asset/CssViewHelper.php
@@ -26,12 +26,10 @@
 final class CssViewHelper extends AbstractTagBasedViewHelper
 {
     protected $escapeChildren = true;
-    protected AssetCollector $assetCollector;
 
-    public function __construct(\TYPO3\CMS\Core\Page\AssetCollector $assetCollector)
+    public function __construct(protected AssetCollector $assetCollector)
     {
         parent::__construct();
-        $this->assetCollector = $assetCollector;
     }
 
     #[\Override]
diff --git a/Tests/CGL/composer.json b/Tests/CGL/composer.json
index f838fcd..c052b97 100644
--- a/Tests/CGL/composer.json
+++ b/Tests/CGL/composer.json
@@ -63,6 +63,7 @@
 		"lint:editorconfig": "ec --git-only",
 		"lint:language": "@composer validate-translations ./../../Resources/Private/Language",
 		"lint:php": "@fix:php --dry-run",
+		"lint:typoscript": "@php typoscript-lint",
 		"lint:yaml": "find ./ ! -path './../../node_modules/*' ! -path './../../vendor/*' ! -path './vendor/*' ! -path './../../typo3_toolbox/*' \\( -name '*.yaml' -o -name '*.yml' \\) | xargs -r yaml-lint",
 		"migration": [
 			"@migration:rector"
diff --git a/Tests/CGL/rector.php b/Tests/CGL/rector.php
index 3b8d1b0..84040ba 100644
--- a/Tests/CGL/rector.php
+++ b/Tests/CGL/rector.php
@@ -8,7 +8,6 @@
 use Rector\TypeDeclaration\Rector\ClassMethod\AddVoidReturnTypeWhereNoReturnRector;
 use Rector\ValueObject\PhpVersion;
 use Ssch\TYPO3Rector\CodeQuality\General\{ConvertImplicitVariablesToExplicitGlobalsRector,
-    ExtEmConfRector,
     GeneralUtilityMakeInstanceToConstructorPropertyRector};
 use Ssch\TYPO3Rector\Configuration\Typo3Option;
 use Ssch\TYPO3Rector\Set\{Typo3LevelSetList, Typo3SetList};
@@ -20,8 +19,6 @@
         $rootPath.'/Classes',
         $rootPath.'/Configuration',
     ])
-    // uncomment to reach your current PHP version
-    // ->withPhpSets()
     ->withPhpVersion(PhpVersion::PHP_84)
     ->withSets([
         Typo3SetList::CODE_QUALITY,
@@ -40,8 +37,6 @@
     // If you use withImportNames(), you should consider excluding some
     // TYPO3 files.
     ->withSkip([
-        // @see https://github.com/sabbelasichon/typo3-rector/issues/2536
-        $rootPath.'/**/Configuration/ExtensionBuilder/*',
         NameImportingPostRector::class => [
             'ClassAliasMap.php',
         ],
diff --git a/Tests/CGL/typoscript-lint.yml b/Tests/CGL/typoscript-lint.yml
new file mode 100644
index 0000000..85c0bef
--- /dev/null
+++ b/Tests/CGL/typoscript-lint.yml
@@ -0,0 +1,15 @@
+paths:
+  - ../../Configuration/
+filePatterns:
+  - "*.typoscript"
+  - "*.tsconfig"
+sniffs:
+  - class: Indentation
+    parameters:
+      useSpaces: false
+      indentPerLevel: 1
+      indentConditions: true
+  - class: NestingConsistency
+    disabled: true
+  - class: RepeatingRValue
+    disabled: true