Re: "It solves a problem that people have."
Window NT. Was the fourth main stream OS architected by Dave Culter.
He is very talented software engineer and while NT was not as good as VMS it was very good.
Microsift may have since mucked it up but NT and its immediate successor XP were solid operating systems which established MS as a serious player in the Server room.
The services part of the OS was very well thought out and very well implemented. So I am not surprised that systemd looks very similar.