Yea basically so I send an invite link for my Jellyfin server. They sign up and install the app then use the Tailscale IP to connect to the Jellyfin server. Usually pretty easy but if they don’t really understand I can do it for them once and then it’s good to go.

Another vote for Tailscale. Relatively easy to set up and can has some pretty cool features I’m still learning about. I also share my Jellyfin server with family and friends and it meets expectations.