PlatformSpecificValue

This library might come in handy when you have a lot of compile-time platform checks in your code.

import SwiftUI
import PlatformSpecificValue

struct ContentView: View {        
    private let shapeRadius: Int = platformSpecific(.macOS(15), .iOS(20))
    
    var body: some View {
        RoundedRectangle(cornerRadius: shapeRadius)
    }
}