diff --git a/.gitignore b/.gitignore
index c0a851b..30f0411 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 /composer.lock
 /.Build/
+/var/
 /vendor/
diff --git a/composer.json b/composer.json
index 1645ca7..565d057 100644
--- a/composer.json
+++ b/composer.json
@@ -34,6 +34,7 @@
         }
     },
     "require-dev": {
+        "typo3/cms-backend": "^10.4 || ^11.5",
         "squizlabs/php_codesniffer": "^3.5",
         "symplify/easy-coding-standard": "^9.4",
         "phpstan/phpstan": "^1.0",