SwiftUI Command Line App

main.swift

import SwiftUI

struct MainApp : App {
    var body: some Scene {
        WindowGroup {
            Text("Hello").padding()
        }
    }
}

DispatchQueue.main.async {
    let app = NSApplication.shared
    app.setActivationPolicy(.regular)
    app.activate(ignoringOtherApps: true)
}

MainApp.main()