Volumio concept - birdview architecture

As I’m rebuilding my house, I thought it would be neat to include speakers in the rooms so we, or guests, can play music in the room they are in.
We’re talking about potentially 6 rooms. Preferably there should be at least 2 speakers per room to get a nice stereo sound.
I will have a central utility room with a couple of servers serving nfs shares for music.
How does Volumio tackle this situatiom?
Do I set up a raspberry per room or can a single raspberry control all speakers?
If multiple raspberries are required, do they link with eacho ther so I only need 1 user interface?
I’m really quite new to this.
If there’s only one central raspberry, I guess it will controll the speakers over tcp/udp.
If each room needs it’s own raspberry, I assume there will be a module on the raspberry to provide sound.

Thanks in advance for any pointers.

Personally, I would like each room to be independent in it’s choice of music being played, so this would be going down the multiple device route. You could still control each Volumio instance from one of the IP addresses (Volumio shows multiple devices in its UI). If you wanted devices to play in sync. then you could investigate the Snapcast plugin. Each device will needs it’s own DAC/amp.

Thank you for your reply.
Yes, it is indeed the idea to provide each room with independent music.
So in this case I will be getting 6 RPI’s I’d like to install them in a central room, where I have all my network equipment and storage equipment and pull long audio cables.
I’m happy to hear Volumio can control multiple devices from a central UI. This is exactly what I need.

Thanks again for the information. I can do a bit more research now and perhaps order some test devices.

For me, I set it up with a separate Pi for each room with a little amp and speakers. The music streams to each of the Pi’s over wifi, so there is no need run wires. Each Pi has a different fixed IP on the network so they can be controlled independently, but they all show up in UI at the bottom of the screen.