Just a shout out to a little known series about porting CP/M OS on a Z180 Z80 varient with an ICE40 FPGA

If anyone needs to scratch a vintage software, hardware, and FPGA itch, you might check out his channel. I don't often watch it because John is long winded, but his project is still quite interesting. He is a good example of someone using FOSS toolchains too.