Open Source
Here are some of my open source or contributed-to projects through out my career, ordered by date with later ones on top:
Tra Cứu Đơn Vị Hành Chính Việt Nam permalink
A browser extension that helps users look up Vietnam’s new and old administrative units following the 2025 reorganization — when Vietnam restructured from a 3-level system (provinces → districts → wards) to a 2-level system (provinces → wards), reducing province count from 63 to 34 and merging thousands of wards.
What makes it stand out: it works fully offline. All data is bundled with the extension and indexed in IndexedDB for instant lookups. It also annotates web pages automatically — underlining new ward names and showing a tooltip with the corresponding old district and province on hover. Search supports accent-insensitive input and phrase queries like tan binh, HCM.
Try it at tracuudvhc.thanh.im, or install it from the Chrome Web Store and Firefox Add-ons.
ÂmLịch.app permalink
A Vietnamese lunisolar calendar web app and <lunar-cal> custom element (Web Component). Shows both solar and lunar dates with daily details including auspicious hours, solar terms, and lunar month info.
What makes it stand out: it also works as a terminal calendar — curl -L amlich.app returns a colorful ANSI calendar with today highlighted, similar to wttr.in. It supports deep-linkable URLs for sharing specific dates, installable as a PWA, and adapts to dark/light mode. The <lunar-cal> custom element can be embedded in any HTML page with configurable timezone and public holidays.
Try it at amlich.app, or use it from the terminal: curl -L amlich.app.
Data visualization collections permalink
My next interest in Web Front End is data visualization in which it demands key expertises of a FE engineer such as drawing, animation, interaction and layout. I’m practicing data viz and show them at viz.int3ractive.com.
node-vn-payments permalink
My team and I have gathered a set of JavaScript classes (written in ES6) that help NodeJS apps exchange data with some common Vietnamese payment gateways with more confidence and ease by validating payload object and normalize multiple gateways specs into a common API.
VueJS Shopping Cart, a PWA demo permalink
My daylight job is mainly focused on ReactJS. VueJS is new, and I wanted learn more about it via an exercise. I’ve enhanced a VueJS shopping cart with PWA capabilities to learn and also do demo for my talks.
date-fns vi locale permalink
One of my projects used date-fns in stead of momentjs because it has better tree-shaking. However, by the time I looked at it, it didn’t have Vietnamese locale yet. So I has contributed the vi locale package for this project.
Nau Chrome Tab permalink
A browser extension which replace new tab page with full screen wallpaper, quick links, inspired quotations and clock. Yeah, it’s a copy of Momentum extension, but this one is light weight, no tracking, and I wrote it from scratch.
Nau Jukebox permalink
A MeteorJS real-time jukebox in which users can collectively book songs from various sources to listen together. This web app is live at jukebox.naustud.io and our team is using it regularly.
Nau Studio’s Code Hub permalink
I have gathered a set of conventions and workflow tooling for my team. They include linter’s config, editor’s config, style guide documentation, yeoman generators and dotfiles. Check out Nau’s code standards site for more info.
Fish boid in 3D permalink
As part of buddy Justin’s portfolio site, this fish boid simulation is derived from ThreeJS birds demo.
In2 Office 360 Demo permalink
One of my earliest code doodle with JavaScript and THREE.JS. This is a virtual walk-through of my then office in 360 view.
Earlier works: permalink
Above are just highlights of my open source contribution over the years. You can visit my GitHub profile and my CodePen profile for other projects and code doodles.
Especially, my early open source and personal projects can be found at this repo (JS) and this repo (mostly Flash).
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