@atomicpoet So cool. I remember wanting a Commodore Vic 20 but my parents decided to buy me the TI 99/4a instead because that's what we had in our high school. I ended up writing a game for it called Night Mission: https://www.pixelpedant.com/items/show/247
Now there's an emulator written for the TI 99/4A in Javascript. It's amazing. http://js99er.net