I'm new to Xcode development so this question might be silly but when I create an iMessage project by selection "iMessage Application" template. And I want it to be standalone app for iMessage so that there is no iOS app as I don't see it useful in my case. I notice that there is only StoryBoard in the project and it looks a little bit different than iOS project. I watched Stanford iOS course 2020 so I'm use to SwiftUI and would prefer using it.