I make software emulators that mimic the hardware of early 'home computers' from back in the late 1970s to mid-1980s 8-bit pre-IBM PC era. Possibly there might

I make software emulators that mimic the hardware of early 'home computers' from back in the late 1970s to mid-1980s 8-bit pre-IBM PC era. Possibly there might just be ten other people (or even fewer) in the world who would find my hobby useful. It's a bit of a 'treasure hunt' to dig around to find old hardware manuals and then work out timing issues in the quest to emulate (say) a floppy-disk controller card from 1981.