diff --git a/doc/Chatter_technical_reference.md b/doc/Chatter_technical_reference.md
index e886f45..5596a27 100644
--- a/doc/Chatter_technical_reference.md
+++ b/doc/Chatter_technical_reference.md
@@ -288,6 +288,14 @@ its full refreshes too); we minimized *when* it happens rather than eliminating
 
 ## 9. Build & deploy
 
+**Get the source:** clone from the Gitea server (needs an account with read
+access to `ack/chatter` and your SSH key registered, or use the HTTPS URL):
+
+```
+git clone git@git.andykopra.com:ack/chatter.git
+cd chatter
+```
+
 **Toolchain:** official reMarkable Chiappa SDK `3.27.0.97` (Qt 6.8.2 sysroot,
 x86_64 host). Install, then `source environment-setup-cortexa55-remarkable-linux`.