diff --git a/home/packages/custom/default.nix b/home/packages/custom/default.nix
index 5f6ec7e..8a97d38 100644
--- a/home/packages/custom/default.nix
+++ b/home/packages/custom/default.nix
@@ -10,6 +10,7 @@
   (callPackage ./nextcloud-sync/from-remote.nix { })
   (callPackage ./typo3-documentation-rendering { })
   (callPackage ./typo3-documentation-rendering-old { })
+  (callPackage ./typo3-serve-testing-instance { })
   (callPackage ./typo3-push-core { })
   (callPackage ./zcat-progress { })
   (callPackage ./project {
diff --git a/home/packages/custom/typo3-serve-testing-instance/default.nix b/home/packages/custom/typo3-serve-testing-instance/default.nix
new file mode 100644
index 0000000..e2b79ab
--- /dev/null
+++ b/home/packages/custom/typo3-serve-testing-instance/default.nix
@@ -0,0 +1,11 @@
+{
+  writeShellApplication
+}:
+
+writeShellApplication {
+  name = "custom-typo3-serve-testing-instance";
+
+  text = ''
+    TYPO3_PATH_APP="$PWD" TYPO3_PATH_ROOT="$PWD" php -S 127.0.0.1:8080 -t .
+  '';
+}