diff --git a/README b/README
index baf8417..574e201 100644
--- a/README
+++ b/README
@@ -9,4 +9,4 @@ The most important features are:
  * mesh-vpn joining the nodes (guests) running on the same cloud
  * load balancer
 
-This is still a pre-alpha stage
+This is still a pre-alpha stage, and depends on mnemosyne 0.4 branch.
diff --git a/extends b/extends
new file mode 100644
index 0000000..5966933
--- /dev/null
+++ b/extends
@@ -0,0 +1 @@
+mnemosyne