diff --git a/docs/DEPLOYMENT.md b/docs/DEPLOYMENT.md
index 50a00dfd..170f4236 100644
--- a/docs/DEPLOYMENT.md
+++ b/docs/DEPLOYMENT.md
@@ -139,6 +139,11 @@ graph TB
 
 - Node.js >= 20.0.0
 - npm >= 9.0.0
+- git — every lane operation shells out to it
+- tmux — only for the browser run console and `agenthub lanes shell`; both
+  execute the binary directly and have no fallback. Per-OS install commands and
+  the two-sided check (your PATH vs the server's) are in
+  [INSTALL.md → Step 0](../INSTALL.md#step-0--system-packages).
 
 ### Setup