I build apps, tools, games, and experiments that solve problems — or sometimes just make things a little more fun.
Lately ·
I’m making a new game, a comedy about one day at the office, for anyone who has ever watched the clock creep towards five. Its working title is 1659: Em về trước nhé! (“1659: I’m heading home first!”). The characters are drawn and the first scenes are in, with plenty still to build. For iPhone, iPad and Android, later on.
In development
Lately ·
The story behind Du Long: a full-moon night with my daughter, a world of childhood lanterns, dragons drawn and redrawn, and a game rebuilt in 3D.
Read the story
Lately ·
It’s now #1 in the top paid Developer Tools apps for iPhone on the US App Store, up from #2 the day before. Esc, Ctrl, Alt, Tab, arrows, F1–F12 and the punctuation a shell actually needs, all on one screen, without ever asking for Full Access. Turns out quite a few people wanted that too. Thanks to everyone who gave it a try.
More about Shell Keyboard
Some experiments stay in a Git branch. These ones escaped into the real world.
Dragon lantern puzzles and lore.
A Mid-Autumn puzzle game of lantern dragons. Guide them home across 300 nights, light their lanterns with colour lotuses, and call 20 dragons with their legends.
Never lose the beat.
An advanced metronome and rhythm trainer for iPhone and iPad. Open it and it clicks; when you want more, it trains your timing, structures your practice and runs your setlist on stage.
All your app revenue, one calm screen.
App Store sales, Google Play installs and sales, AdMob ad earnings and your Google Analytics audience on iPhone and iPad, with a forecast of where the month will land.
A comedy about one office day.
For anyone who has ever watched the clock creep towards five. Working title: 1659: I’m heading home first! Coming to iPhone, iPad and Android, later on.
Match 4 colors. Watch them pop.
Drag multi-colored pieces onto a 9×9 board and connect four or more blocks of the same color to clear them. No timers — take as long as you like.
A puzzle game with no clock in it.
Drag shapes made of line segments onto a 7×7 grid. Close four edges around a cell and the square clears, giving the space back. Nothing counts down while you decide.
One of those "this should be simple" side projects that somehow kept evolving through multiple redesigns and updates.
Because Vietnamese personal income tax shouldn't require a spreadsheet and three browser tabs.
A focused utility for Vietnamese take-home pay: GROSS to NET and back, every insurance fund and tax bracket explained, and saved profiles for the salaries and job offers you compare.
A practical tool built around a very unglamorous problem: turning tax rules into something people can actually use.
A real interactive SSH terminal for iPhone and iPad.
Not a one-command box. xterm-256color with an alternate screen buffer, so vim, htop and less run the way they do on a desktop. Keys and passwords live in the iOS Keychain.
I built Shell SSH as a companion to Shell Keyboard. I wanted to fix a server from a phone without the session dying every time the screen locked.
The terminal keyboard for iOS that never reads what you type.
A custom keyboard extension giving you esc, ctrl, alt, tab, arrows, and function keys directly on your iOS device. Use ssh, vim, and tmux on your phone without fighting the stock keyboard.
Keep score. Keep playing.
A score keeper and game timer for card games, board games and game nights, so you play instead of doing sums.
Play a chord. See the name.
Listens to whatever you're playing — a MIDI keyboard, the on-screen piano, or the on-screen fretboard — and names the chord live. Works as a reverse dictionary too.
Write first. Save never.
A calm, local-first scratchpad for plain text, code and Markdown — on iPhone, iPad, Android and in Chrome.
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Building tools to solve everyday problems, explore ideas, and scratch my own itch.
I've spent years working with software professionally, but I also enjoy building products independently — games, utilities, developer tools, music-related experiments, and whatever else seems interesting enough to turn into code.
For me, development isn't only about writing software. It's the entire loop.
Turn vague ideas into something tangible quickly.
Iterate on interaction, details, edge cases, and things users probably shouldn't notice.
A project becomes much more interesting once somebody other than its developer can actually use it.
Every shipped product changes how the next one gets built.
iOS · iPadOS · Android
Web interfaces · Interaction · Animation
APIs · Services · Persistence
Product design · Music technology · Developer tooling · Experiments
Off the laptop
I play keyboard in Redeploy. Different keys, same loop: practise, break it, fix it, then play it live.
Visit redeploy.band
Three names, one person: me. TechArtVN is the name I’ve built my own apps under. These days I mostly go by nuegyn instead.
So if you spot TechArtVN in an app’s details or in my email address, it’s still just me.
N.N is just my initials. It went through a few versions before it ended up glassy, and now it comes in a handful of variants for different places.
See all the variants