Well, this probably isn't what you were expecting, but here's a pretty solid result: I loaded in Something You Didn't Ever Have in and decided hey, why not replay it on the SID? Turns out it works pretty well!
This video is actually a few days old, and I pushed it out on social media earlier, but I thought everyone would want to get a peek.
Never missing out on an opportunity to criticise my own work, right now the bugs here are:
While working on all of that, I accidentally implemented real gui buttons instead of little arrows and +/- stuff, updated some fonts, cleaned up some code and fixed some speed issues, and really everything looks just a little bit more usable. Screenshots coming soon!