Stickr
A two-parent PWA that mirrors a physical reward chart. Tap once to award a sticker, watch it drop onto a shared board, and redeem rewards at fixed thresholds. The stickers are the easy part. The real work is making two phones agree, keeping an award alive through a dead connection, and stopping a redemption from firing twice. It runs on Supabase with server-authoritative Postgres functions, seeded placement, and offline-first logging.
- React
- TypeScript
- Supabase
- Postg res
- PWA
- Realtime


