# Expo + Cloudflare Worker starter

The phone records, the Worker holds the key and calls TonePerfect.

```sh
cd worker && npm install
npx wrangler secret put TONEPERFECT_API_KEY   # start with a tp_test_ key
npx wrangler secret put APP_TOKEN             # any long random string
npx wrangler deploy                           # note the workers.dev URL

cd ../app && npm install
EXPO_PUBLIC_WORKER_URL=https://toneperfect-proxy.<you>.workers.dev \
EXPO_PUBLIC_APP_TOKEN=<the same string> npx expo start
```

`APP_TOKEN` ships inside the app, so it only keeps casual traffic out. Before
launch, check your own user sign-in in the Worker (for example verify a
Firebase or Supabase ID token) and rate-limit per user.

The app records M4A with `expo-av`, posts it to `/assess`, and lists each
syllable with its score and the tone expected and heard (`toneperfect.compact.v1`).