NVIDIA Linux open GPU kernel module source
A BSD-based OS project that aims to provide an experience with MacOS
Hobby operating system, bootloader, kernel, drivers, C library
Scalable, optimized, secure RTOS for multiple hardware architectures
Real-Time Event Frameworks based on active objects & state machines
It's a personal microkernel project designed as a learning ground.
A cute and educational x86 OS
Indipendent distro uses inary package system. Sulin is roolling donkey
OS bootable from Linux,Windows and others partitions as auxiliary OS
ext2/3/4 library for microcontrollers
PRTOS is a simple, compact preemptive RTOS for embedded systems
A UNIX-like kernel for the i386 architecture
Mulithreading Arduno library
Chromium + Ubuntu = Cub Linux
Android, DOS, FirefoxOS, Linux, MacOS and Windows all in one..
An indie, hobby operating system
Small real time operating system for AVR and ARM microcontrollers