libravatarserv/doc/nginx-example.conf

server {
    listen 443 ssl;
    listen [::]:443 ssl;
    server_name avatar.example.com;

    #access_log /var/log/nginx/avatar main;
    error_log /var/log/nginx/avatar warn;

    ssl_certificate /var/lib/dehydrated/certs/avatar.example.com/fullchain.pem;
    ssl_certificate_key /var/lib/dehydrated/certs/avatar.example.com/privkey.pem;

    location / {
        include /etc/nginx/fastcgi_params;
        fastcgi_pass    unix:/var/run/cgi-fcgiwrap.socket-1;
        fastcgi_param SCRIPT_FILENAME /usr/bin/libravatarserv;
    }
}