Makes sense. Perhaps one could engrave without specialized hardware, i.e. increase the nail and hammer dpi resolution a bit, use a pixel font and become a huma

Makes sense. Perhaps one could engrave without specialized hardware, i.e. increase the nail and hammer dpi resolution a bit, use a pixel font and become a human dot matrix printer. But yes, punch card decoding may be not a problem and a punch card could be fine too - and definitely much cooler.