I Knew systemd. I Didn't Really Understand the .service File.
When you’ve been working with Linux for a while, systemd isn’t exactly unfamiliar. I’ve used systemctl plenty of times. Start a service, stop a service, restart it, check its status, enable it at boot. Nothing particularly mysterious about any of that. But recently I found myself having to create a systemd service file from scratch for one of my own projects, PulsePoint. That’s when I realised something slightly embarrassing. I knew how to use systemd, but I’d never really stopped to look at what was inside one of those .service files. ...