Thanks for taking the time to explain. I was trying to get my head around on how this works but could not understand much of it. A lot of people here are very much against systemd in all senses, but this sounds like a better approach. Even if it not done as systemd, makes more sense than checking files and getting elevated privileges for a scope and use guardrails everywhere
When are we going to riot to have the same button to enter bios setup everywhere? For me personally grinds my gears every time I have a different machine, check the bios boot message like a hawk to get what key I need to press to enter setup (after a while you sort of know by vendor, but for me that should not even be a thing)