Conf-file for LXC Containers missing

Hey there,

I'm following this tutorial to pass through a smb-share to my jellyfin-lxc but I'm stuck at point 4 as I cannot find the conf files.

https://preview.redd.it/jh8jg30tqxge1.png?width=970&format=png&auto=webp&s=d270382b7d0390f3c1f8346366520bc1374d4705

Did I miss something? Where are they?