diff --git a/.container b/.container
new file mode 100644
index 0000000..27e71df
--- /dev/null
+++ b/.container
@@ -0,0 +1 @@
+ghcr.io/gardenlinux/repo-debian-snapshot@sha256:c13fa603f234e93cc8d44ed76d495b3e538866080b70d6668d444d2e0339b223
diff --git a/prepare_source b/prepare_source
index 5ae2140..cf80774 100644
--- a/prepare_source
+++ b/prepare_source
@@ -1,2 +1,3 @@
 apt_src ostree
 apply_patches
+version_suffix=gardenlinux0