Thought I should post my guide on how to do this, as I've struggled with this for quite some time now. I wanted something to bypass the NAT/router as I did not have the option of port-forwarding. I will also be moving quite some in the upcoming year, so dynamic IP was almost a given. And obviously I wanted it to be cheap. This does it all.
This is free, no port-forwarding required and no static IP required. Wildcard domain and SSL certificate supported. It works with Cloudflare tunnels, Cloudflare DNS, Nginx Proxy Manager and obviously TrueNAS SCALE.
I am not a professional, if you see a flaw in this design, please let me know!
- Domain name at Cloudflare