[anthk]

GNU/Linux and BSD had and still have WindowMaker and the whole Cocoa/OpenStep implementation with GNUStep.

[dagw]

I used WindowMaker for years and while it was pretty good, it was never as good as NextStep. GNUStep I could never really get to work consistently, it always felt more like an interesting proof of concept than a stable desktop environment.

[anthk]

Check NextSpace

[dagw]

Thanks! Will do.