How to get started with making streaming wads?

I saw this video by mrt84 where he made a working YouTube wad. It inspired me to want to make working wads for other TV channels like Netflix, Hulu, and Amazon. The problem is that I’m a total noob and would have no idea how to start making something like this. Can anyone help me with figuring out how to start or any resources which may be helpful? Or if this is even possible? Thanks!