I've found systemd to be quite well documented. Here's a few of the resources I frequent: Systemd docs: https://www.freedesktop.org/software/systemd/man/index.

I've found systemd to be quite well documented. Here's a few of the resources I frequent: Systemd docs: https://www.freedesktop.org/software/systemd/man/index.html https://www.freedesktop.org/software/systemd/man/index.html List of directives: https://www.freedesktop.org/software/systemd/man/systemd.directives.html https://www.freedesktop.org/software/systemd/man/systemd.dir... Unit-specific configuration: https://www.freedesktop.org/software/systemd/man/systemd.unit.html https://www.freedesktop.org/software/systemd/man/systemd.uni... Service-specific configuration: https://www.freedesktop.org/software/systemd/man/systemd.service.html https://www.freedesktop.org/software/systemd/man/systemd.ser... Timer-specific configuration: https://www.freedesktop.org/software/systemd/man/systemd.timer.html https://www.freedesktop.org/software/systemd/man/systemd.tim...