I'm a developer in Vietnam. I work at Rework, and most of the rest of my time goes into products I build myself — usually alone, usually late.

Nine years and fifty-odd repositories in, I still describe myself as someone trying to become a real engineer. That's the honest version.

The one thing I can talk about openly.

WELE teaches English listening through dictation. You play real audio — podcasts, interviews, the news — type what you hear, and find out precisely which words your ear keeps missing. I built it for Vietnamese learners who couldn't pay for a course. It has been free for ten years, and it stays free.

• 10,000+ learners
• 200,000+ dictation submissions
• 10 years online, free the entire time

Four out of every five commits I make land in repositories nobody can see yet: research tooling, form automation, agent memory, a developer toolkit. None of it is ready to be talked about. When it is, it'll turn up here.

node-zklib is the one that found an audience. It speaks the protocol of ZKTeco biometric attendance terminals — the fingerprint clocks bolted next to the door in factories and offices across Asia — so you can pull attendance records out of them from Node instead of their desktop software.

Also public:

• easy-devtools — the small tools I reach for every day, in one place
• rework-mcp-server — an MCP server that gives agents access to Rework
• jqueryflow — react-flow, rebuilt for codebases that still run jQuery
• auto-transcript — turn an audio file into a transcript

Rendered from the GitHub API by a script in this repository and refreshed every morning, rather than loaded from a third-party service that goes down.