I built a group expense manager from scratch. Here's what's inside: Stack: React + Node.js + Express + MongoDB + TypeScript + Tailwind v4 Features: → Role-based access (Owner / Member) → Subscription tiers — Free / Pro / Premium → Invite lifecycle (Pending → Active → Removed) → HttpOnly cookie auth + RTK Query → Deployed on Vercel + Render → 10+ Active Users Built every line myself. Version 1 shipped. Next Version shipping. #MERN #React #NodeJS #MongoDB #FullStack #OpenToWork