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 ViệtVietnamese typing for macOS. A JOKey keyboard sits in Input Sources next to Apple's own, and a small app types straight into the text field, without the underline, even at full speed. It makes no network connections. The guides are written in Vietnamese.
curl -sS https://afixer.app/jokey/install.sh | sh
Selected projects
All 19 projectsLive network speed, CPU and RAM usage right on the Windows taskbar.
1 s refresh522 GitHub stars
Runs on Windows 10, Windows 11
Remembers a playback speed for every creator on YouTube, TikTok and Facebook, and applies your preferred YouTube quality.
Per-creator speed
Runs on Chrome, Edge, Brave, Opera
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
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 searches apps, projects and shell history on every keystroke, with no debounce, 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.