yourls_ynh/conf/nginx.conf

location PATHTOCHANGE {
       alias ALIASTOCHANGE;

       rewrite ^/PATHTOCHANGE /$1/admin permanent;

       index index.php index.html index.htm;
       default_type text/html;
       location ~ [^/]\.php(/|$) {
           fastcgi_split_path_info ^(.+?\.php)(/.*)$;
           fastcgi_pass unix:/var/run/php5-fpm.sock;
           fastcgi_index index.php;
           include fastcgi_params;
           fastcgi_param REMOTE_USER $remote_user;
           fastcgi_param PATH_INFO $fastcgi_path_info;
       }


  # Include SSOWAT user panel.
  include conf.d/yunohost_panel.conf.inc;
}