systemd
systemd - Wikipedia
Understanding and Using Systemd - Linux.com
How to Run a Linux Program at Startup with systemd - How-To Geek
The systemd System and Service Manager - GitHub
systemd - ArchWiki
Chapter 10. Managing Services with systemd - Red Hat
What is systemd? - DigitalOcean
Systemd Deep-Dive: A Complete, Easy to Understand Guide for …
systemd System and Service Manager - freedesktop.org