I would look into Tailscale based on your responses here. I don’t know what your use case is exactly but you set TS up on your server and then again on your phone/laptop and you can connect them through the vpn directly. No extra exposed ports or making a domain or whatnot.

If you want other people to access the server they will need to make a TS account and you can authorize them.

Sometimes the radio announcer is better than whoever is calling the game for the tv. It can be much nicer to listen to.

I love my shields, I have both the tube and the pro in different rooms. I like the Jellyfin AndroidTV app more than Kodi. I have side loaded a different launcher to avoid the ads.

I would love to try and replace it, but it needs to be able to handle 4K UHD rips with hdr and the original sound tracks in ATMOS or whatever.