Right now, the Open Source Graphics Card project supports only uart-capable devices. What about easy parallel interface for processors? Wouldn't it be nice to connect it to a Z80, 6502, or 8080? I think that will happen. The only thing I need is a circuit. Here is my current idea:

My idea for a name is 'NGP10', as it is the first version and the middle P for parallel.

I still am yet to get ESP support on my NGT20 design. I have an FTDI cable on the way for my ESP, don't worry. Keep you posted!