all those projects are dead on the water thanks to DRM.

I look into them from time to time. If your source is a topbox or smarttv itself, you can't get any signal because those things use drm protocols that only allow one source. you can get around it with chinese hdmi splitters that will have their own problems.

if your source is a computer, then all those hdmi solutions are overkill vs doing it on software and then output to usb to a dumb and extremely cheap LED controller.