I make the specification of non-linux because otherwise this would just become a thread full of obscure distros that do the same thing as a million other distros.
Some lesser known OSs:
- AROS - based on Amiga OS, has some derivatives like IcarOS and MorphOS
- Haiku - based on BeOS
- Redox - Unix-like, made in Rust (might technically count as linux?)
- Serenity - Unix-like, very late 90s look and feel
- Kolibri - Tiny OS, the image is ~44MB. It also has a smaller version that fits in a single floppy.
- PhantomOS - When 3 Russians decide to turn everything about a typical OS upside down.
That was actually Unix. Specifically the fsn file manager for IRIX.
There’s a Linux clone called fsv.
That’s real?! TIL…
I can’t decide if that changes my answer or not… lol Seems like a cumbersome way to browse files, but maybe that’s because it isn’t how I’ve learned…