Case study · Ledger
Ledger: a prediction game with nothing to lose
The suspense of calling an outcome without a deposit, wager, withdrawal, or real-money loss.
The problem
People who love the read on a game are pushed toward products that need their money. Ledger keeps the prediction and removes the money.
The decision that shaped it
No money in, no money out. A signed-in balance is the sum of an append-only record on the server, not a number the browser reports, and only a call the server graded against the real result counts toward Standing.
- Stack
- TanStack Start and React, Drizzle on Postgres, Netlify functions and Blobs, Anthropic API
- Build
- In build since May 27, 2026, more than 850 commits.
For your build
For a client, anything that counts, like credits, balances or limits, is computed on the server and can be audited line by line.
Start with a free call.
Forty-five minutes. A written first scope within 2 business days, even if you do not hire the studio.