@MonicaSimonyan Working on SwiftUI on both iOS & macOS is really cool for sure, besides that I would say researching solutions for unusual/new tech requirements.
@MonicaSimonyan Monica: Use UserDefaults for small pieces of data. For example of your app runs fist time and present a walkthrough UserDefaults to store that it was run 1 time, configuration values. And CoreData for more complex o large data. Wait, try SwiftData on iOS 17