Thanks, Jason! The example compiled. I thing that's exactly what I need to break through this. I am going to study your code for some time now.
Sure. That was a toy I wrote to learn basic FRP. I should warn you, because of the integration it has a massive space leak and quickly becomes unresponsive. Browse around in that repo for other version of pong that are playable. If I recall correctly, the yampa version works pretty well.