also it is a whole series, there are the other parts as well! Great series, makes systemd understandable - and less fear inspiring.

https://seb.jambor.dev/posts/systemd-by-example-part-2-depen...

https://seb.jambor.dev/posts/systemd-by-example-part-3-defin...

https://seb.jambor.dev/posts/systemd-by-example-part-4-insta...