Notes on full stack development by Ehsan Shahid — React, Next.js, Astro, Node.js, TypeScript, auth, DevOps, and lessons from shipping production software.https://blog.developerehsan.com/en-ushttps://blog.developerehsan.com/building-a-crt-terminal-portfolio/https://blog.developerehsan.com/building-a-crt-terminal-portfolio/How I built a fully prerendered, horizontally-scrolling terminal-themed portfolio with React 19 and vite-react-ssg — and the constraints that shaped every decision, from direct DOM mutation to sr-only crawler mirrors.Fri, 10 Jul 2026 00:00:00 GMTreactssgtypescriptseofrontendhttps://blog.developerehsan.com/jwt-refresh-rotation-and-rbac/https://blog.developerehsan.com/jwt-refresh-rotation-and-rbac/Access tokens leak. Refresh tokens live for weeks. Rotation with reuse detection is what stops a stolen token from becoming a permanent backdoor — here's how I built it in MERN Notes, and how RBAC layers cleanly on top.Thu, 18 Jun 2026 00:00:00 GMTauthbackendpostgresqltypescriptsecurityhttps://blog.developerehsan.com/five-companies-two-years/https://blog.developerehsan.com/five-companies-two-years/Restaurant SaaS, a dating app in two weeks, a five-year-old CRA migration, and leading a startup's frontend. The concrete, unglamorous lessons from moving fast across very different codebases.Sat, 30 May 2026 00:00:00 GMTcareerfrontendfullstack