https://brand.systemd.io/ https://brand.systemd.io/ > Yes, it is written systemd, not system D or System D, or even SystemD. And it isn't system d either. Why?

https://brand.systemd.io/ https://brand.systemd.io/ > Yes, it is written systemd, not system D or System D, or even SystemD. And it isn't system d either. Why? Because it's a system daemon, and under Unix/Linux those are in lower case, and get suffixed with a lower case d. And since systemd manages the system, it's called systemd. It's that simple.