Nginx and backend behind NAT needs certs via 80

[ueukxvj]

Guys, can you help me with next thing:
I have only one ip address, and i have gitlab and mail server which works with https. So, i put nginxproxymanager behind router on port 443, so now nginx and backend both need 80 port to be accessible for certbot. But just for url like ./well-known/… so if somebody trying / , they see 404. I understand how to write it in normal nginx, what i dont understand is how solve this in npm gui :(

[ueukxvj]

Fck this docker, they implementing this feature already 3 years. Installing normal nginx