This is a really fun little adventure! Definitely something I'll be coming back to for quick runs. I have it on my HP 100LX palmtop too for pocketability (though it does run rather sluggish on that).
Thank you for your kind words! Glad to hear that it runs on your HP 100XL, albeit a bit sluggish. Always interesting to know it runs on real vintage hardware. BTW, there's a new version coming but it needs some more work still.