I don't know what any of that means so I'm just gonna take the L
I don't know what any of that means so I'm just gonna take the L

/usr just copy the file to /etc instead and edit it there/usr/lib/systemd/system but you can copy the file to /etc/systemd/system instead and edit it and it will override the one in /usr/etcsystemctl edit servicefile.service and it will do the job for you