diff --git a/merge-all.sh b/merge-all.sh
new file mode 100755
index 0000000000..469602d4d7
--- /dev/null
+++ b/merge-all.sh
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+merge()
+{
+	git subtree pull --prefix=$1 rem-$1 master
+}
+
+merge meta-telephony
+merge meta-sysmocom-bsp
+merge meta-smalltalk
+merge meta-qt5