diff --git a/.container b/.container
new file mode 100644
index 0000000..ceaaefb
--- /dev/null
+++ b/.container
@@ -0,0 +1 @@
+ghcr.io/gardenlinux/repo-debian-snapshot@sha256:f3173b4d253b6c7655205605750bb21bc806e6db415b55c2e601fcb3e78f1182
diff --git a/prepare_source b/prepare_source
index 80d0f33..dc1d2b7 100644
--- a/prepare_source
+++ b/prepare_source
@@ -1,2 +1,3 @@
 apt_src curl
 sed -i '/librtmp-dev/d;s/RTMP, //' "$dir/src/debian/control"
+version_suffix=gl0