User-mode driver and GTK3 based GUI for game controllers, including but not limited to Steam Controller (2015 & 2026)

Universal utility for programming FPGA

Documenting the Lattice ECP5 bit-stream format.

Project IceStorm - Lattice iCE40 FPGAs Bitstream Documentation (Reverse Engineered)

nextpnr portable FPGA place and route tool

Super-parallel Python port of the C-Reduce

System on Chip toolkit for Amaranth HDL

A purely functional DSL to process YAML

SummerCart64 - a fully open source N64 flashcart

A portable and easy-to-integrate implementation of the Advanced Configuration and Power Interface (ACPI)

Super simple USB sniffer using Raspberry Pi Pico.

The original sources of MS-DOS 1.25, 2.0, and 4.0 for reference purposes

Descent 3 by Outrage Entertainment

💫 vertico.el - VERTical Interactive COmpletion

🔍 consult.el - Search and navigate via completing-read

probably better than javascript

Embeddable Linux Kernel Subset - Linux for 8086

Yosys Open SYnthesis Suite

This project will compile verilog (a hardware description language) into factorio blueprints.

A modern hardware definition language and toolchain based on Python

Open-source FPGA retro emulation handheld

MERA 400 emulator

FuzixOS: Because Small Is Beautiful

Complete, independent operating system built by humans.

The Keyronex Operating System

SMW Disassembly X

A language-agnostic JSON-encoded instruction-by-instruction test suite for the 8088, 68000, 65816, 65[c]02 and SPC700 that includes bus activity.