I will confess. I started writing this post about some stupid systemd tricks. However, I wanted to explain a little about systemd first, and that wound up being longer than the tricks. So this Linux ...

Linux, the powerhouse behind countless servers and desktops worldwide, relies heavily on an initialization (init) system to bootstrap user space and manage system processes after booting.

How to diagnose your slow-booting Linux PC in seconds - without spending a dime ...