Apple recently released support of Audio Unit Extensions, to display the app (synthesizer) inside a small window from within the other host app as a plug-in. A new target is added to the project, and I am given an AudioUnitViewController (of AUViewController class), inside which I must display the whole my cocos2d scene. There's also a storyboard, and there's no AppDelegate in this target. Is it possible to somehow manage it with cocos2d v3 ? Or is it better to use some native Apple's api like SpriteKit or CoreGraphics?