diff --git a/server/TODO b/server/TODO
index de71856..e02ced1 100644
--- a/server/TODO
+++ b/server/TODO
@@ -1,3 +1,14 @@
+## What's missing?
+
+ - auth
+ - encryption
+ - acking and retransmission
+ - paging out to disk
+ - persistence of configuration
+ - persistence of messages
+ - statistics
+ - exit signals (for autodeletes etc)
+
 ## OCaml server
 
  - use lazy and Lazy.force where appropriate