A game about developing emulators [video]

Hi! I'm developing a game about NES emulation and just finished a trailer for it. It's a free web game where you code emulator parts and the game runs unit and video tests on your code. The plan is to release it as an open-source repo when it's complete, but I'd love to hear some feedback about the trailer.

I also have a FAQ in https://afska.github.io/emudevz/#/homepage-faq