JRuby, an implementation of Ruby on the JVM

Io programming language. Inspired by Self, Smalltalk and LISP.

AprilTag is a visual fiducial system popular for robotics research.

Optimizing Small memory C Compiler Assembler and Runtime for C64

Microsoft BASIC for 6502 Microprocessor - Version 1.1

The Amsterdam Compiler Kit

A fast streaming JSON parsing library in C.

A modern, user friendly, generic, type-safe and fast C99 container library: String, Vector, Sorted and Unordered Map and Set, Deque, Forward List, Smart Pointers, Bitset and Random numbers.

Cross-platform code to play MIDI files through system facilities.

Minimalistic ahead-of-time Ruby compiler

FreeBASIC is a completely free, open-source, multi-platform BASIC compiler, with syntax similar to MS-QuickBASIC, that adds new features such as pointers, object orientation, unsigned data types, i…

A Modern C11 compiler (STILL EARLY)

Flipper Zero firmware source code

The Wren Programming Language. Wren is a small, fast, class-based concurrent scripting language.

Use your tablet as graphic tablet/touch screen on your computer.

Persistent Memory Development Kit

A pretty (simple) alternative to strace.

YARD docs for the Dragonruby API to allow code completion with solargraph LSP

The Crystal Programming Language

build-once run-anywhere c library

M*LIB is a library of generic and type safe containers / data structures in pure C language (C99 / C11) for a wide collection of container (comparable to the C++ STL).

PicoRuby is the smallest Ruby implementation for one-chip microcontrollers

A high performance implementation of the Ruby programming language, built on GraalVM.

Prism Ruby parser

A Ruby parser.

The ioquake3 community effort to continue supporting/developing id's Quake III Arena

A mini Lisp in 1k lines of C with garbage collector, explained. Includes over 40 built-in Lisp primitives, floating point, strings, closures with lexical scope, macros, proper tail recursion, excep…