Client isolation is mandatory. Every client gets their own Firebase project. NEVER add a client app to applanta-ed830 or any other client's project. One client, one project, full stop.
Sign in with dev@applanta.app → click Add project.
Use the client's business slug — e.g., faith-decor-catering. Short, lowercase, hyphens only. Click Continue.
Toggle off Google Analytics unless the client specifically requested it. Simplifies the setup. Click Create project → wait ~30 seconds.
In the project dashboard → click Spark in the bottom-left → Upgrade to Blaze → enter billing info → Confirm. Required for Cloud Functions v2.
Cost: $0/mo on free-tier usage. A single client app with normal traffic won't exceed free limits. Firebase only charges if usage spikes significantly — which won't happen for a local small business app.
Left sidebar → Build → Realtime Database → Create database → select location: us-central1 → Start in test mode → Enable.
It will look like https://[project-id]-default-rtdb.firebaseio.com. Save this — it goes in the app's Firebase config.
Click the gear icon (top-left) → Project Settings → Cloud Messaging tab → scroll to "Web Push certificates" → click Generate key pair.
Copy the key pair value that appears — this is the VAPID public key. Save it to the client folder. It goes in the app's service worker and push subscription code.
Project Settings → General → scroll to "Your apps" → click </> (Web) → register app with the client's business name → click Register app.
The config object will appear — copy the entire block including apiKey, authDomain, databaseURL, projectId, storageBucket, messagingSenderId, appId. This is safe to include in front-end HTML.
Click gear → Project Settings → Service accounts tab → click Generate new private key → confirm → download the JSON file.
Save immediately to: OneDrive/Client-Builds/[BusinessName]/firebase-service-account.json
This file grants admin access to the Firebase project. Never put it in the app's HTML or any public location.
Open the client's app in Claude Code → paste the firebaseConfig object → paste the VAPID key → Claude wires push subscriptions, RTDB reads/writes, and service worker into the app.
Copy the Applanta push notification Cloud Functions template → update the project references → deploy with: firebase deploy --only functions --project [project-id]
Open the app on a real device → accept push permissions → trigger a test notification from the Firebase console → confirm it arrives on the device.