This was written in Turbo Pascal on a Olivetti M15 I got for 50 pounds (overpaid probably). It had 2 floppy drives and no hard disk: https://oldcrap.org/2024/04/18/olivetti-m15/

That blinking cursor gives me nostalgic feelings.Nice. For anyone checking this out, this is not a video, you can actually 'play' with it, just use the keyboard and hit 'p'.

Ha yeah it didn't occur to me that it looked like a video but I can see it now, yes it's really running dos and if you quit it takes to C:\ (using js-dos)

Alas it appears this wasn't of interest to HN as it never made it past the "new" queue.