Have you tried this? https://github.com/magic-wormhole/magic-wormhole https://github.com/magic-wormhole/magic-wormhole There's also various webapps that work

Have you tried this? https://github.com/magic-wormhole/magic-wormhole https://github.com/magic-wormhole/magic-wormhole There's also various webapps that work similarly: set up the connection then have you transfer data directly to the peer.