1 Go to
console.firebase.google.com and click
Add project
2 Name it anything, disable Google Analytics, click
Create project
3 In the left sidebar click
Build → Realtime Database → Create database → pick any region →
Start in test mode
4 Click the ⚙️ gear →
Project settings → scroll to "Your apps" → click
</> Web → register app (any name) → copy the config values below
Saved in your browser — you only need to do this once per device.