Systemd's run0 is going to make me learn Polkit, isn't it, so that I can force members of group wheel to have to authenticate as root instead of themselves (and so polkit will stop asking me to pick which group-wheel login to authenticate as).
This is my not entirely happy face.
(I have no deep objections to run0 as a thing, it certainly deals with a variety of long-standing su/sudo problems. Although it adds its own limitations, it's not for everything.)