[sortie]

Author here. I'll probably omit the word 'modern' in the next release. Not for the reasons listed here, but because a bunch of stuff purports to be modern while forgetting the lessons of the past.

I implement POSIX not for the sake implementing POSIX, but because it allows me to port a lot of the software that's already written. The core POSIX specification is fairly alright and not that intrusive in my design, the worst parts of POSIX are in optional sections like XSI that I simply omit implementing. I implement a lot of extensions found in Linux and BSD that enhance upon POSIX, while also providing a few of my own. POSIX doesn't say anything about the ABI and doesn't prevent other languages. Atomic file operations are dear to my heart and something I'd like to extend upon in Sortix. Note that POSIX does specify rename(2) is atomic. I implement POSIX when it's convenient and omit doing so when not.

I'm happy to acknowledge the limitations of Sortix up front. It's important to establish this level of honesty early on to set the right expectations and establish trust. I warn up front about the security problems in Sortix (that exist at this time). If you follow the documentation, you should get predictable results with no nasty surprises.

I think Sortix is suitable for education projects. There's some more clean ups that can make it better. But it's of a reasonable size, it doesn't have that many dirty hacks, and it's fairly well organized.