How does JamKazam work over the internet?

[ElijahLynn]

Would like some more detail on how JamKazam works over the net? For example, is everyone connected to a central server, and if are there multiple servers distributed geographically? Is it using WebRTC for peer to peer connections for lowest latency?

I am on Linux so can't test yet and am also wondering about the client statistics, e.g. showing avg. latency to each user etc. 

Thanks