AROS is a lightweight, efficient, and flexible desktop operating system
Another Amiga OS clone is a cute retro project, but this is not forward motion.<p>Nobody seems to want to clone QNX, which is a better architecture. QNX was a great technology lost to bad marketing. Blackberry has it now, and it's used industrially and in automotive systems. But Blackberry dropped the desktop version and the hobbyist version, and you have to cross compile from Windows now.<p>It was open source for a while, and was suddenly made closed source when Blackberry bought it. Sadly, no one seems to have saved the open source version. I wish I had. I didn't have enough disk at the time.