If you'd have any contact with init system, or one of services systemd integrates, you'd definitely know what you need from it, so apparently you don't. Systemd

If you'd have any contact with init system, or one of services systemd integrates, you'd definitely know what you need from it, so apparently you don't. Systemd will integrate many things that were not integrated before, but that's opaque for app developers. If you write any kind of daemon that starts with the system, you may want to add systemd config file defining how to start your app, but that's probably where your contant with systemd will end.