It's amazing how fast you can get back up to speed on something when you have an internet and search engines and emulators to test things in.
Having to reboot your development environment to try something out was a real pain in the 80s. You kids don't know how good you've got it ...
I'd like to point out here that if you're not familiar with the restrictions of the #C64 that stripe across the middle probably doesn't look like much of an achievement. Trust me, it's cool.