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@ljrk @domi @toast @navi Well it's also that my concerns are only the open-source Unix-like systems so Linux/*BSD/illumos/Haiku/… while AIX/HP-UX/Solaris/… are dead to me except maybe for the History section.

And pretty sure I'll document things like stat(1) which is stuck with having two different set of formatting options between BSD-derived and GNU (mostly because I intend for my userspace to implement both, so I'll already have the manpage anyway).