Then why in the heck is he going for POSIX compatibility, when he can afford the luxury of not having to deal with blocking syscalls and all this crap? Much easier and safer multithreading. Also faster.

And why we are there, why not a safer microkernel, keeping everything in userspace? Questions over questions.

>why in the heck is he going for POSIX compatibility

Because existing desktop applications can be ported to ToaruOS

>why not a safer microkernel, keeping everything in userspace?

This is a design choice, microkernels aren't necessarily better than hybrid, they're slower, harder to debug and process management can be complicated

eggy

Just curious how hard it would be to forego POSIX entirely if you were building an OS. I know TempleOS is entirely from scratch. I'd like to implement a small LISP like SectorLISP [1] (see yesterday's posts too on HN). I don't know much about building my own OS, so I'd like to start with something like MenuetOS (my first PL was asm), SerenityOS, TempleOS, or this one. I'd like it to be completely an 'island', i.e. POSIX not a requirement. I want to use it to hack on in isolation without any easy copy/paste shortcuts. I know Mezzano exists, and it has booted on bare metal, but I would like to start with the OS's above, implement my own LISP, and go from there.

Any other OS recommendations base on my ignorant, but wishful, reqs above? I realize there are some others in Rust too. Thanks!

[1] https://github.com/jart/sectorlisp