I want to build a payroll processing app for internal purposes only using: 1. Vercel → frontend + API 2. Supabase → database + auth + storage 3. Stripe → payments **Summary: The Essential Skill Set** Must know: ### **Languages** - TypeScript - JavaScript - SQL (Postgres) ### **Frontend** - React - Next.js - TailwindCSS ### **Backend** - Node.js - Supabase SDK - Stripe SDK ### **Security** - RLS - JWTs - Web security basics