I'm not a macOS user, but these sure seem to add complexity: https://stackoverflow.com/questions/80875/what-is-the-unix-command-to-create-a-hardlink-to-a-direc

I'm not a macOS user, but these sure seem to add complexity: https://stackoverflow.com/questions/80875/what-is-the-unix-command-to-create-a-hardlink-to-a-directory-in-os-x https://stackoverflow.com/questions/80875/what-is-the-unix-c... The filesystem has to check for and disallow loops.