Probably one of my favorite weekend projects and an all-time bucket list item since I was 12. I can finally say I've built my own Game Boy ROM.
The master branch is solely my code, while the full branch has eveyrthing you'd need to build and run the projects.
I'm unsure if I'll be continuing this, but, if I do, I plan on adding maps, collision, better ROM banking (and by that I mean implementing ROM banking in the first place), and, of course, a bit of Thundering Sky for promo reasons only.