I just tried the first exercise of creating a default target and this web application is a great learning resource for Systemd. It should be noted that it works best as a complement to the author’s series on Systemd by example¹.

I also love how the web application works without requiring multiple JavaScript dependencies hosted on third-party servers.

¹ https://seb.jambor.dev/posts/systemd-by-example-part-1-minim...