Ground-Control-Station for multiple Protocols

https://github.com/multigcs/multigcs

Open-Hardware Flight-Controller

https://github.com/multigcs/openfc

Fork of the Autoquad-Copter-Firmware

https://github.com/multigcs/quadfork

2D CAM tool for Linux, BSD, Windows, Mac

https://github.com/cammill/cammill

Simple-Compile-Farm

https://github.com/multigcs/scf