I don't know what qualifues a s quirk, but I sometimes had to think about stuff like "who's PID 0", "do I have the CAP_WHATEVER capability", "I need to 'reap' s

I don't know what qualifues a s quirk, but I sometimes had to think about stuff like "who's PID 0", "do I have the CAP_WHATEVER capability", "I need to 'reap' subprocesses?" and other stuff that 'just works' when you have a decent system with a decent init process and all the other things.