⌥ AI Coding agent for the terminal — hash-anchored edits, optimized tool harness, LSP, Python, browser, subagents, and more

🏝️ corfu.el - COmpletion in Region FUnction

Set of benchmarks for the Ruby programming language

Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote.

AeroSpace is an i3-like tiling window manager for macOS

A Forth Interpreter Written in RPython

The Ruby Programming Language

The Ruby Programming Language

An incremental parsing system for programming tools

📟 A dynamic WebAssembly VM for embedded systems

Sources for website at https://www.pypy.org

A fast and lightweight native programming language

Cross-vendor messaging for CLI AI coding agents — let Claude Code, Codex, Gemini & Copilot talk to each other in one team. Bash + SQLite, no daemon, no framework.

Automatically update function definitions in a running Julia session

NES Tutorial

The agent that grows with you

Re-Connectable secure remote shell

Small but complete dynamic Forth Interpreter/Compiler for and in WebAssembly

Use Claude Code's autonomous agent loop with DeepSeek V4 Pro, OpenRouter, or any Anthropic-compatible backend. Same UX, 17x cheaper.

route Claude Code requests through multiple upstream providers (OpenCode Go, OpenCode Zen, and AWS Bedrock) with automatic model selection and format transformation.

Git with a cup of tea! Painless self-hosted all-in-one software development service, including Git hosting, code review, team collaboration, package registry and CI/CD

Emulator for the Cody Computer

Yet Another macOS SKK Input Method

The open source coding agent.

Next-generation JavaScript analysis tooling

Game Boy / Game Boy Color emulator running on an FPGA

SUPER Famicom emulator running on an FPGA

Circuit IR Compilers and Tools

nextpnr portable FPGA place and route tool