What we've done with GitHub Desktop is very different than the write-an-entire-app-in-JS approach that a lot of apps have taken. There's a small piece of custom

What we've done with GitHub Desktop is very different than the write-an-entire-app-in-JS approach that a lot of apps have taken. There's a small piece of custom UI that's built with HTML, JS, and CSS; but even it is controlled by native code. GitHub Desktop is still mostly native code on both platforms.