It looks like there's a tunnel app... could I use it to tunnel other stuff if I got creative? I'm behind CGNAT with Starlink on one of my connections, and I wouldn't mind a freebie tunnel to, say, a webserver in there...
+1 for ngrok, totally worth the $80 a year (or whatever it is I shell out).
Yes, you're free to tunnel whatever you like with the custom TCP and UDP tunnels. We have users tunneling their SSH and FTP servers and all sorts of things. Though if the bandwidth starts disrupting game severs, I may need to reconsider :).
If this doesn't work out for your needs, I've had good results using Cloudflare Argo Tunnel so far.