Nguyen Cong Hoang
Software engineer in Vietnam. I make small, fast tools for macOS, Windows and home networks, and I tinker with electronics when I'm away from the keyboard.
JOKey
Tiếng ViệtA Vietnamese input method for macOS. It sits in Input Sources next to Apple's own keyboards, can type without the underline, and runs in the macOS sandbox with no network access. The guides are written in Vietnamese.
curl -sS https://afixer.app/jokey/install.sh | sh
Selected projects
All 13 projectsLive network speed, CPU and RAM usage right on the Windows taskbar.
1 s refresh522 GitHub stars
Runs on Windows 10, Windows 11
Network-wide ad and tracker blocker in one 10 MB Rust binary, drop-in compatible with AdGuard Home.
10 MB binary
Runs on Linux, macOS, Docker
A Spotlight replacement for macOS with no file indexing, sub-millisecond search and 0% idle CPU.
< 1 ms search
Runs on macOS
Finds the developer caches, build output and leftover app data filling your Mac's disk, and deletes only what you confirm.
No install
Runs on macOS
Native menu bar monitor for network speed, CPU, RAM and CPU temperature.
No dependencies
Runs on macOS 11+
Menu bar app that keeps your Claude Code session and weekly usage in view.
Session and week %
Runs on macOS
What I aim for
Quick to open
Lightspot finds an app in under a millisecond, and it never indexes your files to get there.
Light on the machine
NoMacMusic sits at 0% CPU and around 7 MB of RAM. Sift fits a whole network's DNS filter into a 10 MB binary.
Nothing phones home
No sign-ups, no telemetry. JOKey can't reach the network at all, and this site doesn't run analytics.