Checkbook
A personal-finance forecasting app that projects future account balances on an infinite-scroll calendar, so you can see the downstream effect of every recurring bill and paycheck before it happens.
Full-stack: authentication with 2FA, household sharing, a demo mode, and a forward-looking projection engine — with end-to-end and unit test suites.
- Next.js 16
- React 19
- Tailwind 4
- Drizzle ORM
- Better Auth
- Playwright
- Vitest
- Vercel