diff --git a/17.md b/17.md
index 900b6dd754..2b4f67ffb2 100644
--- a/17.md
+++ b/17.md
@@ -170,6 +170,10 @@ This NIP offers the following privacy and security features:
 
 The main limitation of this approach is having to send a separate encrypted event to each receiver. Group chats with more than 100 participants should find a more suitable messaging scheme.
 
+## Apps that implement NIP-17 & related discussion
+
+See https://github.com/nostrability/nostrability/issues/169.
+
 ## Examples
 
 This example sends the message `Hola, que tal?` from `nsec1w8udu59ydjvedgs3yv5qccshcj8k05fh3l60k9x57asjrqdpa00qkmr89m` to `nsec12ywtkplvyq5t6twdqwwygavp5lm4fhuang89c943nf2z92eez43szvn4dt`.