3 Monitor systemd state and email root if there is a problem.
7 - Run `makepkg` for Arch Linux or `./makedeb` for Debian/Ubuntu. Install the resulting package.
8 - Configure an MTA so you can receive mail sent with the command: `echo foobody | mail -s foosubject root`
9 - Enable and start the service: `systemctl enable systemd-monitor && systemctl start systemd-monitor`