Right now sharing a complex scene (say more that one file) is complicated.
One step that would simplify that is to have an option to make the scene script file embed the files instead of pointing to existing local files.

If we go one step further, we could even imagine having a way to make the demo host the file online (gist/pastebin/...) so that we could share a URL that you open in the demo and get the scene loaded directly on the fly.

While writing that, I wonder whether we could not even have a way to connect to another demo to get the current camera position to make 1 user remotely showing something.