Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.

A free Windows-compatible Operating System

Run macOS VM in a Docker! Run near native OSX-KVM in Docker! X11 Forwarding! CI/CD for OS X Security Research! Docker mac Containers.

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

The original IBM PC and other machine emulations in JavaScript

A classic Mac loaded with everything you'd want

Incomplete list of macOS `defaults` commands with demos ✨

OSX (macOS) inside a Docker container.

Boot ChromeOS on x86_64 PC - Supports Intel CPU/GPU from 8th gen or AMD Ryzen

Writing an OS in 1,000 lines.