diff --git a/build/30-virt.sh b/build/30-virt.sh
new file mode 100644
index 0000000..23996ed
--- /dev/null
+++ b/build/30-virt.sh
@@ -0,0 +1,13 @@
+#!/usr/bin/bash
+set -eoux pipefail
+
+
+
+
+
+# --- 2. Die sofortige Bereinigung (WICHTIG!) ---
+echo "Cleaning up this layer..."
+dnf5 clean all || true
+dnf5 autoremove -y || true
+rm -rf /tmp/* /var/tmp/* || true
+