Simply Awesome.
A BSD-based OS project that aims to provide an experience with MacOS
Blazingly Fast & Customizable Linux distribution
Intel Bluetooth Kernel Extensions for macOS
A Fast, Offline, Graphical distribution based on Arch Linux
Real-Time Event Frameworks based on active objects & state machines
AO RTOS is small real time OS based on Active Object concurrency model
Software development for 4Mb portable, using Z80 CPU and AA batteries
Mirror of: https://github.com/osdldbt/
Tool kit for building highly secure special-purpose operating systems
Musician-oriented Linux distro
Just bring Linux for a better world
A microkernel-based multiserver operating system written from scratch.
C++ embedded RTOS,TCP/IP,TLS,FAT,USB,PERIPHERALS,...
Indipendent distro uses inary package system. Sulin is roolling donkey
Tiny Kernel is a work in progress Operating System kernel.
Beamology: Semicom Project Management
Free real-time operating system designed for microcontrollers