Core or Remote VPN with Tidal

I live in a country where Tidal is not available so I will have to rely on VPN to access it (this is legit as my primary residence is US). I have a Mac Mini which serves as a remote machine directly connected to the stereo system. Should I activate VPN on the core machine, or the remote, or both? I don’t want to use VPN for the entire house as it will slow down the network.

It would be the core as this is what makes the connection to Tidal