# page ledger

- **Event:** [Meta Global AI Developer Hackathon](https://cerebralvalley.ai/e/meta-ai-developer-hackathon)
- **When:** Oct 26, 12:00 PM – Nov 4, 9:00 PM (EST)
- **Where:** Online
- **Team:** [Izaan sherif](https://cerebralvalley.ai/u/iznshf)
- **GitHub:** https://github.com/Izaansherif/page-ledger
- **Demo video:** https://uploadnow.io/files/y4cSPrp
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2294

Small shops across India run on paper notebooks: who took goods on credit, who paid back, who to chase. When a page fills up or a customer doesn't return, the follow-ups — and the money — are forgotten.

Page Ledger gives that notebook a memory. The shopkeeper photographs a page, and Muse Spark Open — Meta's open-weights model, hosted on Modal — reads it into structured rows: customer, item, amount, date. The app is deliberately strict about what the model may do: struck-out lines are excluded, low-confidence cells are marked "unsure" rather than guessed, and every line is confirmed on a check screen before anything is saved.

The confirmed page becomes a live ledger: a customer dashboard, an overdue strip, one-tap WhatsApp reminder templates that the owner reviews and sends personally — the AI never messages anyone — payment recording, and "Ask my ledger", which answers questions like "who owes me more than five hundred rupees?" from the shop's own numbers. The API key and spending caps live on the server, never in the browser.

## More from Meta Global AI Developer Hackathon

- [Jojolapa](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2291)
- [Airi.chat](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2292)
- [Chris34star](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2293)
- [AariaSec - Witness](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2295)
- [Wizard](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2296)
- [Measure Once](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2297)

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Markdown version of https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2294. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt