问纯SwiftUI登录，注册，注册流程，可能吗？

EN

WindowGroup {
        ZStack {
            Color.background.edgesIgnoringSafeArea(.all)
            
            // this layer will take care of sign up and authentication
            AuthenticationLayer { account: AccountStore in
                // city select will take care of a default location for the app
                CitySelectLayer { city, citySelect in
                    // this layer will be responsible for displaying overlaid media
                    MediaLayer { mediaVM in
                        // main screen
                        TabbedScreen()
                            .environmentObject(account)
                            .environmentObject(city)
                            .environmentObject(citySelect)
                            .environmentObject(mediaVM)
                    }
                }
            }
        }
    }

struct MediaLayer<Content: View> : View {
// content
let content : (ImagesOverlayVM) -> Content
// view model
@StateObject var viewModel = ImagesOverlayVM()

var exitButton : some View {
    Button(action: viewModel.dismissImages) {
        Image(systemName: "xmark.circle")
            .font(.system(.title3, design: .rounded))
            .foregroundColor(.secondary)
    }
}

var header : some View {
    HStack {
        exitButton
        
        Spacer()
    }.padding()
}

var loadingView : some View {
    Image(systemImage: .radiowaves)
        .resizable()
        .aspectRatio(contentMode: .fit)
        .frame(width: 32, height: 32)
        .foregroundColor(.secondary)
        .spin()
}

var placeholder : some View {
    Image(systemName: "photo")
        .resizable()
        .aspectRatio(contentMode: .fit)
        .frame(width: 32, height: 32)
        .foregroundColor(.secondary)
}

func tabView(images: [S3ImageLoader]) -> some View {
    TabView {
        ForEach(images) { vm in
            S3ImageView(viewModel: vm, contentMode: .fit) {
                loadingView
            } placeholder: {
                placeholder
            }
        }
    }.tabViewStyle(PageTabViewStyle(indexDisplayMode: .automatic))
}

var body : some View {
    ZStack {
        content(viewModel)
            .isHidden(viewModel.images != nil)
        
        if let images = viewModel.images {
            VStack(spacing: 0) {
                header
                
                tabView(images: images)
                
                header
                    .hidden()
            }
        }
    }
}