Fast PDF generation and compression. Deals with millions of pages daily.

Infocom-style interactive fiction player for Unix and DOS (moved to https://gitlab.com/DavidGriffith/frotz)

Microsoft PowerToys is a collection of utilities that supercharge productivity and customization on Windows

The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.

LLM-powered job search for people who aren't looking — yet.

Lightweight skills + three markdown files for solving cross-session context in coding agents

my c=64 files and code

Distributed object store

Apache IoTDB

Terasology - open source voxel world

Catch API bugs before your users do

Mixin is a trait/mixin and bytecode weaving framework for Java using ASM

A community-maintained Python framework for creating mathematical animations.

Use your Raspberry Pi as a browser-based KVM.

Framework for orchestrating role-playing, autonomous AI agents. By fostering collaborative intelligence, CrewAI empowers agents to work together seamlessly, tackling complex tasks.

3D visualization and mesh analysis for science and engineering

🤖 Build voice-based LLM agents. Modular + open source.

jsoup: the Java HTML parser, built for HTML editing, cleaning, scraping, and XSS safety.

Emulator collection for Nintendo® Game & Watch™

CFW for the Nintendo Game and Watch

JPEG decoder for Apple //e DHGR — written in PLASMA, renders to 140×192 16-color display

Bash Scripts that I can share publicly

git-cola: The highly caffeinated Git GUI

Analysis tools for the 1980 Apple II game Mystery House

Made a repo for my pico experimentes, not enough pico code to find online, so I made a repo for random sketches.

Misc. games for PICO-8