A Fast, Offline, Graphical distribution based on Arch Linux
Scalable, optimized, secure RTOS for multiple hardware architectures
A BSD-based OS project that aims to provide an experience with MacOS
Musician-oriented Linux distro
Blazingly Fast & Customizable Linux distribution
Real-Time Event Frameworks based on active objects & state machines
QNAP GPL Source
Get latest Edition here: http://www.openqrm-enterprise.com.
Low power application-configurable Operating System
freeRTOS for Arduino Uno, Goldilocks 1284p & Mega 2560
Portable Penetration Testing Operating System
A microkernel-based multiserver operating system written from scratch.
LuninuxOS is a Debian/Ubuntu based Linux distribution.
RTOS for Secure, Safe and Real-Time Systems
Hanthana Linux Project
Open-source RTOS and Embedded Systems Toolkit for C++ and C
An operating system written in RTL
A UNIX-like kernel for the i386 architecture
CAN bus device driver
LinuxTLE (Revival)
Chromium + Ubuntu = Cub Linux