Use published hiimmilan/health-check image in compose

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TdvJYoY8kc8bmBck89U2i6

README.md

@@ -21,8 +21,11 @@ Assistant as a device with sensors and no manual configuration.
 
 ## Running
 
+The compose file pulls the published multi-arch image
+`hiimmilan/health-check` (amd64, arm64, arm/v7):
+
 ```sh
-docker compose up -d --build
+docker compose pull && docker compose up -d
 ```
 
 Then open `http://<device>:9999/`.
@@ -111,3 +114,10 @@ Entities per device:
 python3 -m unittest discover -s tests
 DB_PATH=./data/hc.db python3 app.py
 ```
+
+Publish a new image for all Raspberry Pi architectures:
+
+```sh
+docker buildx build --platform linux/amd64,linux/arm64,linux/arm/v7 \
+  -t hiimmilan/health-check:latest -t hiimmilan/health-check:2.0.0 --push .
+```

docker-compose.yml

@@ -1,7 +1,6 @@
 services:
   healthcheck:
-    build: .
-    image: healthcheck-container
+    image: hiimmilan/health-check:latest
     container_name: healthcheck
     restart: unless-stopped
     # Host networking exposes the Wi-Fi interface to the container. The app