Product engineering · 2026
BurmeseLingo MINI
A free English-learning product for Myanmar learners starting from near zero. Every competing app assumes you can already read English to learn English — so the prompts, hints and error messages here are Burmese-first. That single decision drove the entire design.
- Built80-unit journey · 400 active lessons · 3,392 authored exercises · 1,206 recorded audio clips · streaks, XP, 27 badges, weekly leagues, certificates
- StackReact + Vite · Fastify + grammY (TypeScript) · Convex with a SQLite rollback mirror · Docker with health checks
- Hard partContent integrity at 3,392 exercises. Manual review doesn't scale and a bad exercise silently teaches wrong English.
- Answer236 automation scripts: an axe accessibility gate that fails the build, audio-coverage and provenance audits, a curriculum integrity check, an art-quality gate, a production smoke test.





