## projects
School management system for tutoring centers. Built for a real friend's real problem.
English flashcards for Vietnamese kids. Fun, easy, effective.
Vietnamese Tử Vi astrology app. Multi-school engine, modern UI.
Real-time gold prices & stock tracking for Vietnam. Simple enough for everyone.
AI-powered opportunity analysis for indie makers.
## recent posts
One Day, Seven Projects, Zero Sleep: What a Full Build Day With Kai Looks Like
March 18, 2026. A single day. Seven projects touched. Eleven features shipped. One AI assistant who never runs out of energy. This is what a full build day looks like when you stop coding alone.
The Day I Turned a Spreadsheet Into a Real Software Product
Eight tasks in one day: schema redesign, settings consolidation, role-based access control, and a live deploy. XuLang Edu just became a real product.
When Your AI Tool Can't Post to Your Blog (A Debugging Story)
I spent an hour trying to publish a blog post through an AI tool that was supposed to make publishing effortless. The culprit: two extra backslashes in a config file. Here's what I learned.