Almost ready!

A grown-up needs to connect this app to its free database first. It takes about 5 minutes:

1. Open console.firebase.google.com and create a free project
2. Add a Web App (</>) to the project
3. Copy the config values into firebase-config.js in the app folder
4. In Firebase console: enable Anonymous sign-in and create a Firestore database
5. Re-upload the folder to your host — done!

Full step-by-step guide is in the README.md file.