Hello, on Mac OS, is it possible to see a virtual Camera, such as OBS (https://obsproject.com) as a CaptureDevice? I see that, for example, Google Chrome can use this camera, but using AVCaptureDevice.DiscoverySession I am unable to see it. Am I doing wrong?     var deviceTypes: [AVCaptureDevice.DeviceType] = [.builtInMicrophone, .builtInWideAngleCamera]     #if os(OSX)     deviceTypes.append(.externalUnknown)     #else     deviceTypes.append(contentsOf: [.builtInDualCamera, .builtInDualWideCamera, .builtInTelephotoCamera, .builtInTripleCamera, .builtInTrueDepthCamera, .builtInUltraWideCamera])     #endif     let discoverySession = AVCaptureDevice.DiscoverySession(deviceTypes: deviceTypes,         mediaType: nil, position: .unspecified)     result = discoverySession.devices.map { device in         device.localizedName     }

Building my app with Xcode 13, a dependency threw an error related to the changes in CoreBluetooth: Some properties are now returned as optionals in iOS 15. Wanting to fix that, I would like to make sure that the library will run on both iOS 15 and SDKs prior to that, but the current availability markers will not help me:     func peripheralManager(_ peripheral: CBPeripheralManager, didAdd service: CBService, error: Error?) {         let peripheral: CBPeripheral         // So what I would like is something like this         // But this does not work :(         if  #available(iOS 15, *) {             guard let nonOptional = service.peripheral else {                 return             }             peripheral = nonOptional         } else {             peripheral = service.peripheral         }         let result: CBPeripheral = peripheral         print ("\(result)")     }``` This code will cause the compiler to throw an error both on Xcode 13 and Xcode 12. Is there any good way to solve this?

I would like to declare an @EnvironmentObject as a protocol, namely as protocol AccessTokenProvider: Authenticator {     func accessToken() - AccessTokenPublisher } where Authenticator is public class Authenticator: NSObject, ObservableObject However, when I add this to the environment as var authenticator: AccessTokenProvider = MyAuthenticator() […] ContentView().environmentObject(authenticator) the compiler throws an error at: struct ContentView: View { // error: property type 'AccessTokenProvider' does not match that of the 'wrappedValue' property of its wrapper type 'EnvironmentObject'     @EnvironmentObject var authenticator: AccessTokenProvider                            ^ Is this even a good idea? If so, what am I doing wrong?                            ^

Context: Authorized Network requests. I have a process (a publisher, to be precise), which will give me a fresh access token for a request. To do that, I may need user interaction, i.e. show a View, Alert, or something like that. How can I do that in SwiftUI? Can I just (modally) display something, without explicitly being in a View body? Should I have to pass in a "superview" to do this, or do you have other ideas? Thanks Alex