[kodi-standalone-service] post-install creates user xbmc instead of kodi
The post-install creates user & group 'xbmc', but the installed systemd service expects user 'kodi'. The post-install needs to be updated to create user / group 'kodi' instead.
After installation, I had to do this to fix it:
sudo usermod -l kodi -d /var/lib/kodi -c "Kodi user" xbmc sudo groupmod -n kodi xbmc
See also the AUR package: