For people wanting to do something like this on Linux, you would want to set up a self-hosted rtmp server. Pretty easy. This video is very helpful
https://www.youtube.com/watch?v=Js1OlvRNsdI - I give some help in the comments section on how to set up the nginx.conf file. It's a bit of work, but well worth it.
Anybody complaining that this app doesn't work on Linux should read the description under "Supported Platforms". Good luck to all. <3