Comments & Gmail sign-in (Firebase) — setup

Comments & Gmail sign-in (Firebase) — setup

Comments and Google (Gmail) login run on Firebase. Until you add your keys the site shows a friendly placeholder; everything else works. ~10 minutes:

1. Create a project at https://console.firebase.google.com → Add project.
2. Register a Web app (the </> icon). Copy the firebaseConfig object.
3. Paste it into assets/js/firebase-config.js (replace the empty window.GZE_FIREBASE).
4. Authentication → Sign-in method → enable Google. Under Settings → Authorized domains, add genz-economics.com (and localhost for testing).
5. Firestore Database → Create database (Production mode). A comments collection is created automatically on the first post.

6. Firestore rules — paste these (anyone can read; only signed-in users can post; authors can delete their own):

   rules_version = '2';
   service cloud.firestore {
     match /databases/{db}/documents {
       match /comments/{id} {
         allow read: if true;
         allow create: if request.auth != null
           && request.resource.data.uid == request.auth.uid
           && request.resource.data.text is string
           && request.resource.data.text.size() < 2000;
         allow delete: if request.auth != null && resource.data.uid == request.auth.uid;
       }
     }
   }
   

That’s it — sign-in, threaded comments, and the daily-question discussions go live. Each day’s question is its own thread, so the archive keeps every past discussion.