What stays the same
Your Starlink or 4G router. Nothing is opened or forwarded. The box plugs into a LAN port and takes an address by DHCP.
Your data allowance. The box's own traffic is currently a few megabytes a day; watching video is what uses data.
Your devices. Cameras, recorders, pump and gate controllers and weather stations are reached as they are. We hold no device logins.
Your own software. Software that opens a camera by address and port can use it: the maker's desktop program, a media player, a browser for the recorder's web page. You list the addresses that may connect, or allow any and the portal warns you.