diff --git a/by-topic.md b/by-topic.md
index 54c6767..da6c422 100644
--- a/by-topic.md
+++ b/by-topic.md
@@ -2728,6 +2728,8 @@
 
 ## others 
 
+- [metaodi/openerz](https://github.com/metaodi/openerz) - OpenERZ is an open API to the waste collection of many different municipalities in Switzerland (e.g. Zurich, Basel, St. Gallen, Uster, Thalwil, Adliswil, Horgen etc.)
+- [thinkst/canarytokens](https://github.com/thinkst/canarytokens) - Canarytokens helps track activity and actions on your network.
 - [imputnet/helium-linux](https://github.com/imputnet/helium-linux) - Helium Browser for Linux
 - [imputnet/helium-chromium](https://github.com/imputnet/helium-chromium) - Private, fast, and honest web browser based on Chromium
 - [BogdanTheGeek/semihost-ip](https://github.com/BogdanTheGeek/semihost-ip) - Running TCP/IP over SWD lines