Open Source Android TV?

I am trying to figure out how to get something like an open source version of Android TV. I don’t want to use the normal Android TV as that has spyware in it.

  1. Is there some box made with a roku like remote that I can install this on?

  2. Is there such thing as open source Android TV?

  3. Would this support casting like Android TV?

Thinking more about it. I wonder if I want an linux box that can emulate android apps. I would like a Roku like experience though.