Phil, nice videos on the Ethereal capital Blackbox early model. Since they supplied you with a testing ring you seem to trust them.

Now, I just checked their latest 16x FPGA unit and they will include Acorn 215+ in their August batch.

https://blackbox.cat/collections/frontpage/products/blackbox-x16-bcu1525-fpga-system-with-16x-xilinx-bcu1525-fgpas-august-batch

Is Acorn still hype or Ethereal capital is riding the hype? Or they know more than you do?

I'm keeping an eye on this project, it seems interesting.