A command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, POP3, POP3S, RTMP, RTMPS, RTSP…

tmux source code

The FreeBSD src tree publish-only repository. Experimenting with 'simple' pull requests....

xv6 OS

A command line tool that recreates the famous data decryption effect seen in the 1992 movie Sneakers.

Original Windows File Manager (winfile) with enhancements

The earliest versions of the very first c compiler known to exist in the wild written by the late legend himself dmr.

The Fast Lexical Analyzer - scanner generator for lexing in C and C++

SL(1): Cure your bad habit of mistyping

GPAC Ultramedia OSS for Video Streaming & Next-Gen Multimedia Transcoding, Packaging & Delivery

Darwin is the Open Source core of macOS, and PureDarwin is a community project to extend Darwin into a complete, usable operating system.

The Computer History Simulation Project

MLT Multimedia Framework

WDF makes it easy to write high-quality Windows drivers

a realtime plotting utility for terminal/console with data input from stdin

Apple cctools port for Linux and *BSD

A simple mark-sweep garbage collector in C

386BSD

Cross-platform virtual machine for Squeak, Pharo, Cuis, and Newspeak.

AST - AT&T Software Technology

a gcc-based cross-compiler for classic 68K and PPC Macintoshes

Port of the Vim text editor to the iOS

Install and debug iPhone apps from the command line, without using Xcode

My Little Unix: Kernels are Magic!

Library with common API for various MATE modules

4.4BSD Lite Release 2: last Unix operating system from Berkeley

A Macintosh II emulator that runs A/UX

Variant of 4.4BSD Unix for microcontrollers

A Scheme subset for Atmel microcontrollers.

old-school Macintosh Emulator