I've had a very silly project in progress for a while along those lines to implement a Game Boy emulator entirely in Redux (state) and React (screen output, wit

I've had a very silly project in progress for a while along those lines to implement a Game Boy emulator entirely in Redux (state) and React (screen output, with pixels mapped to the appropriate bits). If I ever finish I imagine it will be incredibly slow, but it would allow for 'time traveling' the entire emulator state.