As an Android developer this is incredibly exciting - can't believe I haven't heard about this project before. I'm especially interested to hear you might add push notifications.
I apologise if this is already in the docs, which I haven't had time to read yet, but how close is this to Firebase on the front end? If I want to migrate an app already using Firebase to Appwrite for example, just thinking of the learning curve.
See also, Supabase, a competitor to Appwrite.