You could use systemd: Implementing Sonarr with systemd
also: https://github.com/Sonarr/Sonarr/wiki/Autostart-on-Linux#method-4-rclocal
and for debian (pre-systemd): https://github.com/Sonarr/Sonarr/wiki/Autostart-on-Debian
You could use systemd: Implementing Sonarr with systemd
also: https://github.com/Sonarr/Sonarr/wiki/Autostart-on-Linux#method-4-rclocal
and for debian (pre-systemd): https://github.com/Sonarr/Sonarr/wiki/Autostart-on-Debian