diff --git a/ESCROW.md b/ESCROW.md
index 7efa194..f0aa05b 100644
--- a/ESCROW.md
+++ b/ESCROW.md
@@ -92,6 +92,21 @@ Escrow is native-only and its mint paths are unverified — run this on a real
 device with **tiny amounts** before trusting it. Check every box; anything that
 fails is a bug to fix (or a mint that doesn't support P2PK — note which).
 
+### Producing a test build
+```bash
+# First time only — generates android/ (gitignored)
+npm run android:init
+
+# Build the web assets + sync into the native project
+npm run android:sync
+
+# Debug APK (debug keystore — no release secrets needed)
+cd android && ./gradlew assembleDebug
+adb install -r app/build/outputs/apk/debug/app-debug.apk
+```
+To test both sides you need **two accounts** — easiest is one device (this build)
+plus one other client/device with a different key.
+
 ### Preconditions
 - [ ] Latest Android build installed (`npm run android:build`), logged in.
 - [ ] Cashu wallet initialised and a reachable, trusted **mint** added (Wallet).