Virtual whiteboard for sketching hand-drawn like diagrams

minimal cross-platform standalone C headers

embedded-graphics backend for Ratatui

A free Windows-compatible Operating System

The open source server code for the BitCraft MMORPG

JuiceFS is a distributed POSIX file system built on top of Redis and S3.

TinyCity is a city simulation game inspired by SimCity for MicroPython

A very minimal, resource efficient exo-kernel

One file. Everything connected. Map networks, smart homes, sports plays, mind maps, or infrastructure in a single self contained file. Offline first, animated, encrypted, fully styled. Networkening…

A JSON-Compatible Zero-Copy Serialization Format

👻 Ghostty is a fast, feature-rich, and cross-platform terminal emulator that uses platform-native UI and GPU acceleration.

Marmot helps teams discover, understand, and leverage their data with powerful search and lineage visualisation tools. It's designed to make data accessible for everyone.

Open Source realtime backend in 1 file

📖 Runbooks that run

Dillo, a multi-platform graphical web browser

Blitzkrieg is a 2003 real-time tactics video game based on the events of World War II and is the first title in the Blitzkrieg series. The game was developed on an in-house game engine by the compa…

Multiplayer at the speed of light

Source code for the X Recommendation Algorithm

Digging Deeper....

Car Gauge style module for Love2D

The most minimal cross-platform GUI library

Animation engine for explanatory math videos

A vectorized single header hash function.

Portable file server with accelerated resumable uploads, dedup, WebDAV, SFTP, FTP, TFTP, zeroconf, media indexer, thumbnails++ all in one file

A minimalist game framework in the style of the "game engine" we use at Zachtronics.

bluetooth mesh chat, IRC vibes

Arm Mbed OS is a platform operating system designed for the internet of things

Source code for Skin Deep (2025)

Neverwinter Nights: Enhanced Edition eXtender

Parallel S3 and local filesystem execution tool.