The Big Beautiful Trump Card is a clone of Steve Ciarcia's Trump Card based on the Zilog Z8001 CPU. The project is released under OSHW.

To simplify the project, I use more recent components such as a CPLD to contain the glue logic and a memory chip to replace the dynamic memory. The project is in the prototype stage for now. The PCB is at version 1. So far, RAM, ROM access and the bit bucket all seem to work. No hardware patch necessary.

See my project page on Hackaday.io for CPLD files and other goodies. https://hackaday.io/project/203815-bbtc