LimeWire (which now has its crypto currency probably) has been on a rampage recently aquiring some of really good tools including ShareDrop and SnapDrop. https://pairdrop.net/ is the last one standing so far.
[1]: https://gist.github.com/SMUsamaShah/fd6e275e44009b72f64d0570...
Unrelated to the wormhole python cli tool and associated file sharing protocol.
...which is freaking awesome torrent software, by the way.
But still, being able to almost immediately stream, even if through VLC, is pretty nice.
Slightly different approach – "P2P first", i.e. both sender and receiver need to be online simultaneously throughout the transfer, but there's a TURN relay, so it should work in almost all network constellations.
Peer-to-peer: https://en.wikipedia.org/wiki/Peer-to-peer