Use `Type=Forking`. By default, `Type=Simple` is used and it expects that the daemon stays forking in the foreground. However, lbrycrdd does the opposite and forks/goes to background. This confuses systemd a little bit:
```
Dec 09 10:30:28 lbry.devass.club systemd[1]: lbrycrdd.service: Unit process 12237 (lbrycrdd) remains running after unit stopped.
```
So basically it thinks that the unit stops working instantly. When the correct type is used, systemd should be able to handle this situations, along with restarts, properly.
See also: [AUR systemd service](https://aur.archlinux.org/cgit/aur.git/tree/lbrycrd.service?h=lbrycrd)