I recently finished reading (well, listening) to Data and Goliath: The Hidden Battles to Collect Your Data and Control Your World. The author is Bruce Schneier. If you don't know who he is already, you can read more about him on his Wikipedia entry and his personal website. These are my thoughts about the book and some of the interesting points that I found.
After years of learning and teaching both music and programming, I have noticed many similarities. These are some of my opinions and interesting scientific studies that give some insight in to their relationship.
systemd is used in many mainstream Linux distributions like Arch Linux, CentOS, Debian/Ubuntu, RedHat/Fedora, openSuse, Slackware, CoreOS and more. It provides an easy way to manage and control services and a simple method of creating your own services. This will cover the process of creating and managing your own custom service.