It looks like that's part of what the OP is doing. The other recommendation to modify the systemd unit file directly has a problem in that the next Emby update installed can overwrite the changes. The proper permanent way to change this is with a unit file override that is preserved across updates.   systemctl edit emby-server.service   Add the service options you want to override using the same format with [service] and [unit] blocks, save and restart. Some of the options append values and