IntroductionI created a Game Boy emulator in Ruby and released it as a gem called rubyboy! (I’d be happy if you could give it a star!)And now it runs in the browser using WebAssembly!Try the demo in your browser!Screenshots— sacckey (@sacckey) March 17, 2024This ArticleWhile explaining the implementation process of Ruby Boy, I’ll introduce the points where I got stuck and the techniques I devised. I’ll also introduce what I did to optimize Ruby Boy.Finally, I’ll show how Ruby Boy works in the br...