> POSIX Annoyingly, the FHS isn't POSIX (nor SUS) and thus not Unix. There's thus no real standardisation on what the filesystem should look like and thus even

> POSIX Annoyingly, the FHS isn't POSIX (nor SUS) and thus not Unix. There's thus no real standardisation on what the filesystem should look like and thus even Guix or Gobolinux can be POSIX candidates. Even macOS takes advantage of this nonstandardisation by putting stuff in /Applications, /Library and /Users. The debate about what belongs in /usr, /usr/local, /opt (and hahaha, /opt/local) is mostly subjective opinions about just how local these local things are.