All Mac native apps need an Objective-C Wrapper at minimum to give them an executable entry point (all apps are actually directory structures). You also on the

All Mac native apps need an Objective-C Wrapper at minimum to give them an executable entry point (all apps are actually directory structures). You also on the App Store need to vendor in your dependencies. There's no language restriction in play. You can even still use the old GC if you want - just not on their store. The Mac App Store isn't the only game in town.