Issue #2: Moved local SwiftUI state to a view model.

dns/DnsApp.swift

@@ -0,0 +1,16 @@
+
+import SwiftUI
+
+@main
+struct DnsApp: App {
+
+    @StateObject
+    var viewModel = ViewModel()
+
+    var body: some Scene {
+        WindowGroup {
+            HomeView()
+                .environmentObject(viewModel)
+        }
+    }
+}

dns/HomeView.swift

@@ -35,8 +35,11 @@ enum ServiceStatus {
 }
 
 struct HomeView: View {
+
+    @EnvironmentObject
+    private var viewModel: ViewModel
+
     @State private var isEnabled = false
-    @State private var selectedBlocklist: BlocklistOption = .secure
     @State private var serviceStatus: ServiceStatus = .operational
 
     private let falsePositiveURL = URL(string: "https://www.sr2.uk/contact")!
@@ -74,13 +77,13 @@ struct HomeView: View {
                     ForEach(BlocklistOption.allCases) { option in
                         BlocklistRow(
                             option: option,
-                            isSelected: selectedBlocklist == option
+                            isSelected: viewModel.blocklist == option
                         )
                         .contentShape(Rectangle())
                         .onTapGesture {
                             guard option.enabled else { return }
                             withAnimation(.spring(duration: 0.3)) {
-                                selectedBlocklist = option
+                                viewModel.blocklist = option
                             }
                         }
                         .opacity(option.enabled ? 1 : 0.6)
@@ -105,7 +108,7 @@ struct HomeView: View {
                         HStack {
                             Label("Server", systemImage: "server.rack")
                             Spacer()
-                            Text(selectedBlocklist.server)
+                            Text(viewModel.blocklist.server)
                                 .foregroundStyle(.secondary)
                                 .font(.system(.body, design: .monospaced))
                         }
@@ -113,7 +116,7 @@ struct HomeView: View {
                         HStack {
                             Label("IPv4", systemImage: "globe")
                             Spacer()
-                            Text(selectedBlocklist.ipv4)
+                            Text(viewModel.blocklist.ipv4)
                                 .foregroundStyle(.secondary)
                                 .font(.system(.body, design: .monospaced))
                         }
@@ -121,7 +124,7 @@ struct HomeView: View {
                         HStack {
                             Label("IPv6", systemImage: "globe")
                             Spacer()
-                            Text(selectedBlocklist.ipv6)
+                            Text(viewModel.blocklist.ipv6)
                                 .foregroundStyle(.secondary)
                                 .font(.system(.body, design: .monospaced))
                         }
@@ -217,4 +220,5 @@ struct HomeView: View {
 
 #Preview {
     HomeView()
+        .environmentObject(ViewModel())
 }

dns/ViewModel.swift

@@ -0,0 +1,16 @@
+//
+//  ViewModel.swift
+//  dns
+//
+//  Created by Benjamin Erhart on 14.04.26.
+//
+
+import Foundation
+import Combine
+
+class ViewModel: NSObject, ObservableObject {
+
+    @Published
+    var blocklist: BlocklistOption = .secure
+
+}

dns/dnsApp.swift

@@ -1,11 +0,0 @@
-
-import SwiftUI
-
-@main
-struct dnsApp: App {
-    var body: some Scene {
-        WindowGroup {
-            HomeView()
-        }
-    }
-}