today i refactored openrc's cgroup code, and, i can kind of see how easy it is to fall on the trap of doing too much™

systemd managing both system services, user services, and user sessions make their cgroups setup somewhat easier to reason about

i won't grow a session manager into openrc because well, openrc is an init system, not a session manager

but, i'll probably start working on a session manager akin to what logind does, and i now know things to look out for as well