This is a submission for Weekend Challenge: Passion Edition
What I Built
Loyalty Ledger — a fan loyalty tracker where your check-in streak, badges, and history live on Solana instead of some app's database.
Live app: https://loyalty-ledger-blond.vercel.app
Here's the problem I kept coming back to. Every sports app wants you to check in, engage, "prove your loyalty" — collect points, build a streak, unlock a badge. Cool. Except every single one of them throws that history away the second you stop opening the app. Switch apps and your streak resets to zero. Get banned, or the app shuts down, or they just quietly decide to wipe inactive accounts one day — and your history is just... gone. Because it was never actually yours. It was a number sitting in someone else's database, and they could reset it, inflate it, or delete it whenever they felt like it. You had zero say in it.
