As another commenter points out you can signal however you like, but even if a s...

root_axis on March 19, 2020 | parent | context | favorite | on: Things you can do with a browser in 2020

As another commenter points out you can signal however you like, but even if a signaling server was required, it'd still be peer to peer since peer to peer accurately describes how the packets are routed over the network.