how to set up a remote managed node for mom

I run my production Jellyfin server and a few other services on a Optiplex sff computer with a thicc hard drive and a low profile GPU.

I want to build two more of these with thicc Hard drives so that my parents and my in-laws can have a local Jellyfin instance that I manage remotely and they just need a box plugged in somewhere at their homes.

Is it possible to make Proxmox build a VPN tunnel on boot so I can just have it in my cluster dash. Like using tailscale or openvpn.

Or am I going to have to go with my original plan and put that on the same box as the Jellyfin server and then just VNC in?

Any tips or ideas?