diff --git a/README.md b/README.md
index a11d9db..632549c 100644
--- a/README.md
+++ b/README.md
@@ -43,6 +43,11 @@ curl "http://localhost:8000/api/v1/nearby?lat=55.7525&lon=37.6231"
 Swagger UI: http://localhost:8000/docs
 Adminer (DB inspection): http://localhost:8080
 
+The `api` service binds `0.0.0.0:8000` (see `docker-compose.yml`), so it's
+also reachable from other devices on the same LAN at
+`http://<this-machine's-LAN-IP>:8000/` — no extra config needed, just make
+sure nothing (firewall, VPN) blocks port 8000 on that interface.
+
 ## Android quickstart
 
 ```bash
@@ -51,8 +56,10 @@ cp android/local.properties.example android/local.properties
 cd android && ./gradlew :app:assembleDebug
 ```
 
-Point the app's API base URL at `http://10.0.2.2:8000/` for the emulator, or
-your machine's LAN IP for a physical device.
+Point the app's API base URL (`API_BASE_URL` in `local.properties`) at
+`http://10.0.2.2:8000/` for the emulator, or your machine's LAN IP
+(e.g. `http://192.168.8.173:8000/`) for a physical device on the same
+Wi-Fi/LAN.
 
 ## Notes / current scope
 
diff --git a/android/local.properties.example b/android/local.properties.example
index 67c4b36..dbd5163 100644
--- a/android/local.properties.example
+++ b/android/local.properties.example
@@ -7,5 +7,6 @@ DGIS_API_KEY=b4df01a8-61db-4cb9-8286-7e069495987d
 
 # Base URL of the guideCity backend API.
 # Emulator -> host loopback: http://10.0.2.2:8000/
-# Physical device -> your machine's LAN IP, e.g. http://192.168.1.50:8000/
-API_BASE_URL=http://10.0.2.2:8000/
+# Physical device on the same Wi-Fi/LAN -> your machine's LAN IP, e.g. http://192.168.1.50:8000/
+# (backend already binds 0.0.0.0:8000 via docker-compose, so it's reachable on the LAN IP with no extra config)
+API_BASE_URL=http://192.168.8.173:8000/