I have no experience with coding at all. I want to learn programming in Swift and make epic apps and games for Apple platforms. Could someone please tell me how I could learn programming and make apps?

I know that Xcode still lets you write apps in Objective - C, but there is hardly any (new) documentation, and very few new apps are written in it. To add to the question - how viable would it be to learn and write a new app in Objective - C in 2021?

I'm about to start work on my first app. One of the major things I need to decide is what platforms I want to support. I've decided to support iOS and the Mac. However, I've already run into an issue - without even writing a single line of code yet. My app heavily relies on iCloud/CloudKit to sync users' content between iOS and macOS. If I were to make this available on other platforms in the future, (how) would I be able to let users access this iCloud content? Thanks. P.S - By "other platforms" I am referring to the web and W**dows (I'm not sure if it is against the rules here to mention that platform by name).

I have noticed that, as of late, the iOS simulator has been incredibly slow. Even simple (and perhaps silly) actions like changing the wallpaper take an unreasonably long time, to the point where it is no longer clear whether the process has hanged. I tried to change the wallpaper to a photo of mine, but it simply would not appear. Even booting up takes several seconds, and home screen animations are laggy. I've given up on testing my build for now. I have tried with an iPhone Xr and an iPhone 15 Pro simulator - both running iOS 17.0. Both are extremely laggy. This is on an M1 MacBook Air running the stable version of macOS Sonoma 14.0. with Xcode version 15.0.1 and Simulator version 15.0.1. I have checked the Activity Monitor for CPU and RAM. There is nothing abnormal. I would appreciate any suggestions.