Caddy v2 as Reverse Proxy with GUI in OPNsense

Great and thanks for creating as an issue. It is inline with some of the solutions I have been reading in the caddy community over here

example.com {
  @trusted remote_ip 10.1.1.0/24
  @untrusted not remote_ip 10.1.1.0/24

  root * /usr/local/www/html
  file_server @trusted
  file_server @untrusted {
    index untrusted.html
  }
}