Systems Architect. Creator of RexOne. Pioneering Discipline-Driven Development across Rails 8, React 19 & Flutter 3.

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Rex Naing • Peerlist

Car valley is a full-stack web application that allows its users to book cars online, the frontend of the application was built with React js and Redux and we used Ruby on Rails in the backend to be able to generate at the end the 'API that the frontend uses

Car-valley

Students can track their learning progress and will earn money when they achieved certain goals.

Earn To Learn

Portfolio of articles I've written about internet privacy and cybersecurity. Shoot me a message we discuss more.

Portfolio

Start from One. Not from Zero.RexOne is a 100% free and open-source (Apache 2.0) sovereign full-stack foundation for web and mobile. Instead of spending 9 months and $150k+ rebuilding the same universal plumbing (auth, billing, storage, RBAC, background queues, and mobile clients), RexOne provides a synchronized tri-platform baseline on day one.The Sovereign Trinity:• Core: API-first Ruby on Rails 8.1 with PostgreSQL 18.• Web: Modern React 19 + TypeScript + Vite SPA.• Mobile: Compiled 60fps Flutter 3 with offline Drift SQLite sync and biometrics.Why RexOne?1. Discipline-Driven Development (DDD): In an era where AI generates code at 100 tokens/sec, unconstrained AI creates massive architectural debt. RexOne enforces an immutable constitution (<a target="_blank" rel="noopener noreferrer nofollow ugc" class="break-all link-break text-gray-500 hover:underline" href="http://LAW.md">LAW.md</a>) and 1,785+ automated tests so AI coding agents build within deterministic guardrails.2. Zero Cloud Rents: Eliminates expensive BaaS lock-in (Firebase, Supabase Cloud, AWS S3).3. Monolithic Resource Elegance: Solid Queue and Solid Cable replace external Redis daemons, running the entire stack smoothly on a single $5–$10/mo European VPS with under 2 GB RAM.4. Self-Hosted Storage: European Garage S3 (by Deuxfleurs) with zero egress fees.Links:• Live Demo: <a target="_blank" rel="noopener noreferrer nofollow ugc" class="break-all link-break text-gray-500 hover:underline" href="https://rexone.rex9.me">https://rexone.rex9.me</a>• Core Repository: <a target="_blank" rel="noopener noreferrer nofollow ugc" class="break-all link-break text-gray-500 hover:underline" href="https://github.com/rex-9/rexone-core">https://github.com/rex-9/rexone-core</a>• Web Repository: <a target="_blank" rel="noopener noreferrer nofollow ugc" class="break-all link-break text-gray-500 hover:underline" href="https://github.com/rex-9/rexone-web">https://github.com/rex-9/rexone-web</a>• Mobile Repository: <a target="_blank" rel="noopener noreferrer nofollow ugc" class="break-all link-break text-gray-500 hover:underline" href="https://github.com/rex-9/rexone-mobile/">https://github.com/rex-9/rexone-mobile</a>