This is really neat as a technical demo. What's your anticipated real-world use for something like this?

My first thought was that it would be fantastic in a case where I needed to pull a file off a server I was SSHd into but didn't feel like setting up a SFTP session. Of course, in that case I probably wouldn't be comfortable having the data pass through a third-party.

this is cool, I like the way the time limit is just built in with the life of the process. Perfect niche use case.