diff --git a/steamos.sh b/steamos.sh
new file mode 100755
index 0000000..a1a250a
--- /dev/null
+++ b/steamos.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+function sync_steamos() {
+	repo_url="$1"
+	repo_dir="$2"
+
+	[ ! -d "$repo_dir" ] && mkdir -p "$repo_dir"
+	cd $repo_dir
+	lftp "${repo_url}/" -e "mirror --verbose  -P 5 --delete --only-newer; bye"
+}
+
+BASE_URL=${TUNASYNC_UPSTREAM_URL:-"http://repo.steampowered.com"}
+sync_steamos "${BASE_URL}" "${TUNASYNC_WORKING_DIR}"