OS bootable from Linux,Windows and others partitions as auxiliary OS
The most advanced jailbreak tool
UNIX/LINUX and legal homebrew software on the xbox360 gaming console
The OpenSolaris source base (OpenSolaris-ONNV) maintained version
Free real-time operating system designed for microcontrollers
Message passing microkernel-based Operating System for ZX Spectrum +3e
LuninuxOS is a Debian/Ubuntu based Linux distribution.
RTOS for Secure, Safe and Real-Time Systems
Open-source RTOS and Embedded Systems Toolkit for C++ and C
Real time preemptive embedded multi-thread kernel
Real-Time Embedded Operating System
HackSys Extreme Vulnerable Driver (HEVD) - Windows & Linux
Hanthana Linux Project
Linux Kernel Input/Output Driver for one single GPIO line
NetFlow iptables module for Linux kernel
A Tiny Linux-Compatible Kernel
Nebula Kernel, My Personal Custom Kernel geared towards Performance.
PRTOS is a simple, compact preemptive RTOS for embedded systems
ext2/3/4 library for microcontrollers
32 bit VIRGO Linux Kernel
A UNIX-like kernel for the i386 architecture