OTA Update Server

Static file server for hosting Mirror OS remote APK updates. Runs on the homelab alongside workout-player on port 9091.

Endpoints

Path	Description
`GET /api/mirror-os/version`	Version manifest (JSON)
`GET /mirror-os-remote.apk`	APK download
`GET /health`	Health check

Deploy on Homelab

# Copy files to homelab
rsync -avz deploy/ota-server/ homelab:~/ota-server/

# Start the server
ssh homelab 'cd ~/ota-server && docker compose up -d'

The server runs nginx on port 9091 serving static files from public/.

Publish an Update

From the repo root:

# Build APK, bump version, copy to public/
./deploy/publish-apk.sh "Added new feature X"

# Then sync to homelab
rsync -avz deploy/ota-server/public/ homelab:~/ota-server/public/

The script:

Builds the release APK via flutter build apk --release
Copies the APK to deploy/ota-server/public/mirror-os-remote.apk
Increments the version number in version.json
Sets the changelog from the argument (or defaults to "Bug fixes and improvements")

How the App Checks for Updates

The remote app (apps/remote) has an update_provider.dart that:

Fetches http://192.168.86.172:9091/api/mirror-os/version
Compares the returned version number against the locally installed version
If newer, shows a prompt to download and install the APK from downloadUrl

Version Manifest Format

{
  "version": 1,
  "downloadUrl": "http://192.168.86.172:9091/mirror-os-remote.apk",
  "changelog": "Initial release"
}

The version field is a simple incrementing integer.