diff --git a/.container b/.container
new file mode 100644
index 0000000..f801149
--- /dev/null
+++ b/.container
@@ -0,0 +1 @@
+ghcr.io/gardenlinux/repo-debian-snapshot@sha256:f6585c1cb68d3761bfc2f46636935251405928f9c4b4ba5c41da579d7d9d5b5e
diff --git a/prepare_source b/prepare_source
index 7c7074e..c3d97ea 100644
--- a/prepare_source
+++ b/prepare_source
@@ -1,3 +1,4 @@
 apt_src openssl
 rm "$dir/src/debian/patches/Always-call-OPENSSL_cleanup-prior-to-exit.patch"
 sed -i '/Always-call-OPENSSL_cleanup-prior-to-exit.patch/d' "$dir/src/debian/patches/series"
+version_suffix=gardenlinux0