About
ToAruOS (とあるOS)
ToaruOS is a hobby operating system, including a kernel and userspace, built from scratch since December of 2010.
Quake
Gears
It was originally developed at the University of Illinois at Urbana-Champaign. For a period of time, it was the development focus of the university's SIGOps chapter.
ToaruOS is open source, released under the NCSA/University of Illinois license. Sources are available on gitlab.