The source for the Linux kernel used in Windows Subsystem for Linux 2
Scalable, optimized, secure RTOS for multiple hardware architectures
Hobby operating system, bootloader, kernel, drivers, C library
This is the stress-ng upstream project git repository.
Zen Patched Kernel Sources
Linux kernel driver for Xbox One and Xbox Series X|S accessories
Building and running ancient Linux on Windows
An operating system based on the best Windows NT design principles
C-BIOS is an open source BIOS for MSX computers.
Linuxfx Operating System
A Fast, Offline, Graphical Installer for Arch Linux
Market leading real time kernel for 40+ microcontroller architectures
Free operating system for Atari computers, and more.
Real-Time Embedded Frameworks based on active objects & state machines
QNAP GPL Source
A multiboot cd with six mini Linux Systems
freeRTOS for Arduino Uno, Goldilocks 1284p & Mega 2560
A cute and educational x86 OS
Software development for 4Mb portable, using Z80 CPU and AA batteries
Low power application-configurable Operating System
A microkernel-based multiserver operating system written from scratch.