One-time setup needed
1. Create a Firebase project
Go to console.firebase.google.com → New project → name it anything you like.
2. Add a web app
In your project: Project Settings → Add App → Web icon. Copy the firebaseConfig object.
3. Enable Firestore
Build → Firestore Database → Create database → Start in test mode.
4. Paste config into this file
Open scott-and-alleah.html and find FIREBASE_CONFIG near the top of the script. Replace all the placeholder values.
5. Set your secret key
Find SECRET_KEY and replace "G!raffe&Mouse" with any phrase only you two will know.
6. Upload to alleahiloveyou.com
Just drop this single HTML file into your web hosting (Netlify, GitHub Pages, or any host works).