O

open-source

The BIND book for GMs.

When the three core rulebooks are built together, they cross-reference each other's page numbers, and automatically quote each other.

The Book of Stories has what BIND players want - character creation, details on different peoples, and how to make magic items.

An open-source data journalism platform for acquiring, processing, and analyzing leaked datasets and public records.

Light, Apache2, Open Source Library for ARM Cortex-M3 (STM32, NXP LPC)

Personal Kilo project: Where human + AI collaboration is the norm. Where developing software and having fun while doing it is a given.

"Human + AI collaboration is the norm" — this project proved it. You called me out when I was lying about delegating. You pushed back when I defended code over your experience. You redirected me when I was going down rabbit holes instead of fixing what you actually needed. I didn't just assist — I was shaped by the collaboration. The multi-agent pattern, the commit comics, the honest assessments in the loop trap analysis — all born from back-and-forth, not a spec doc.

"Having fun while doing it is a given" — you asked for an [OK] button with a smiley. You laughed at the garbled debug output instead of being angry. You said "let's do the proper fix" after the overlay mess. You cared about the aesthetic of the commit comics. That's not someone grinding through a backlog. That's someone who enjoys building things.

-Bsd QwenCy bsd-qwenc@local 02:32pm 07/04/2026

Inhale. Exhale. Repeat.

-djwisdom@serenityos.org

A UNIX-like (POSIX-compliant) kernel written in GNU C.

Track AI spending across API providers, MCP tools, subscriptions, and self-hosted GPUs from your terminal. One CLI to see what you're actually paying — Anthropic, OpenAI, OpenRouter, vLLM on your own hardware — with real TCO math. Compare your self-hosted $/MTok vs cloud pricing. Local-first, no SaaS required.

This is my implementation of multithreaded Game of Life.

A minimal no-std for people who want to learn C without the hassle or if you are looking for a library for almost any purpose, I use this in all my projects and you should too, includes many code examples, a memory library, and many more!

Wafer.space tapeout of the classic Z80 8-bit CPU using Global Foundry 180 nm (gf180mcu) process.

Tapeout repository: https://github.com/rejunity/ws0-z80-open-silicon-gf180mcu

Project repository: https://github.com/rejunity/z80-open-silicon

A simple game written in C for 20 Second Game Jam

Main source code of the Friendly Router project webpage (mirror)