Careful running emacs as a systemd service. I did this for some time, but then one day when I rebooted the computer, nothing worked - drives weren't mounted properly, services I expected weren't there. I finally found that none of my systemd services had come up (but systemd didn't generate errors or failed messages) and yet later still discovered that it was apparently an error in my .emacs that had somehow caused a domino effect of none of my systemd services starting up.

I've gone back to just having `emacs --daemon` in my .xnitrc.