To build you need to set the googleMapsApiKey environment variable so we have it.

In one terminal run:

export googleMapsApiKey=...
npm start

In another terminal run:

export googleMapsApiKey=...
npm run android

See https://reactnative.dev/docs/next/running-on-device for more.

1. On the phone enable debugging
2. Find the device name with adb devices
3. Run the following: adb -s <device name> reverse tcp:8081 tcp:8081