This sounds similar to Popcorn Time (now defunct). I think they open sourced and then got taken down a while back. One major difference (I think?) is it appear

This sounds similar to Popcorn Time (now defunct). I think they open sourced and then got taken down a while back. One major difference (I think?) is it appears Cloudstream doesn't include the "sources" by default in the core app. Maybe that will help them subvert copyright for a while if the client GUI is decoupled from the source of the pirated content.