For some more exotic testing, I was able to run my own magic wormhole relay[1], which let me tweak some things for faster/more reliable huge file copies. I still hate how often Google Drive will fall over when you throw a 10s-of-GB file at it.
[1] https://www.jeffgeerling.com/blog/2023/my-own-magic-wormhole...
The lack of improvement in these tools is pretty devastating. There was a flurry of activity around PAKEs like 6 years ago now, but we're still missing:
* reliable hole punching so you don't need a slow relay server
* multiple simultaneous TCP streams (or a carefully designed UDP protocol) to get large amounts of data through long fat pipes quickly
Last time I tried using a Wormhole to transmit a large amount of data, I was limited to 20 MB/sec thanks to the bandwidth-delay product. I ended up using plain old http, with aria2c and multiple streams I maxed out a 1 Gbps line.
IMO there's no reason why PAKE tools shouldn't have completely displaced over-complicated stuff like Globus (proprietary) for long distance transfer of huge data, but here we are stuck in the past.