[TechBro8615]

When I used a Chromecast, I was fond of an even more direct method. On my laptop I ran a Node CLI called "peercast" [0] with a single argument (a magnet link), and it streamed a video file while downloading its torrent, and since it called the torrent library directly, it could prioritize downloading the earlier chunks of the file so I could start streaming the video before the download completed.

It looks like that repo hasn't been updated in a while, although it might still work. It's an offshoot of peerflix [1], a Node CLI that streams video from a torrent to an h264 playlist. So without peercast I would just open my browser to the local network address where peerflix was hosting the h264 playlist, and use the Cast button to stream it to my device (which I believe technically means Chromecast "takes over" downloading the playlist, rather than my laptop pushing the video to it, so I just needed to use a URL with the LAN IP of my computer).

[0] https://github.com/mafintosh/peercast

[1] https://github.com/mafintosh/peerflix