Saldfy
Andrew Martins Carletti · Full Stack Developer
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Personal finance web application: income, expenses, and account-to-account transfers, categories, bill payment alerts, recurring series with a 12-month rolling window via Vercel Cron, and a dashboard with indicators and balance evolution. Next.js 16 with React Compiler, Auth.js v5 over Firebase Auth, Firestore via Admin SDK, custom design system in Tailwind 4 + Base UI, Basic and Pro plans (monthly/annual) with Asaas hosted checkout and webhook, read-only sharing by invitation, and transactional emails.
Skills used
- Next.js, Used in 2 projects
- React, Used in 2 projects
- TypeScript, Used in 2 projects
- Firebase, Used in 2 projects
- Firestore, Used in 2 projects
- Tailwind CSS, Used in 2 projects
- Zod, Used in 2 projects
- Design Systems
- Vercel
- Vitest, Used in 2 projects
- Testing Library
- Playwright, Used in 2 projects
- Payment Gateways, Used in 2 projects
Updated September 2026
