Required keys for app.json in bare workflow

Migrating from a Expokit to Bare (+ Expo Updates) workflow.

What are the required app.json values needed? The documentation explains Expokit changes but it would be good to see where any key/values effect Bare workflow apps. I eventually plan to use Expo client app for feature release or internal testing, but for now it’s strictly a standalone app.

{
    "name": "AppName",
    "displayName": "App Name",
    "expo": {
      ...
    }
  }