Have you considered other approaches, such as Tailscale or Cloudflare Tunnels? I think you’re complicating things.

I have some SmartThings plugs that work similarly, I think they have a UK version.

TubeArchivist sounds like a better fit for that.

Depression

You can use lists in Readarr. Set up a Goodreads account, link Readarr to a list in Goodreads. Any books in the list will automatically be added to Readarr.