Many things like that here. Look here, where nostr belatedly discovers ngrok.
In short, this NWS thing was where a so-called “entry node" captures some web traffic, wraps it into an encrypted Nostr event which is then sent to a relay that holds it until an “exit node” fetches it, decrypts the event, sends it to the local web server, and then sends the response back through the relay the same way.
It, err, didn't take off.
So many things like this.