diff --git a/.container b/.container
new file mode 100644
index 0000000..4c17d06
--- /dev/null
+++ b/.container
@@ -0,0 +1 @@
+ghcr.io/gardenlinux/repo-debian-snapshot@sha256:75dae392f6a7c7094b838b9cc58f2ec56f24544ce5aed22db0c1018d3b275a4c
diff --git a/prepare_source b/prepare_source
index 5bc228e..37d8ddc 100644
--- a/prepare_source
+++ b/prepare_source
@@ -1,3 +1,4 @@
 git_src --branch debian/2.9.2-1 https://salsa.debian.org/sssd-team/sssd.git
 cp 32b72c7c.diff "$dir/src/debian/patches/"
 echo 32b72c7c.diff >> "$dir/src/debian/patches/series"
+version_suffix=gardenlinux0