Add a feature flag for the new RoomThreadList screen.

ElementX/Sources/Application/Settings/AppSettings.swift

@@ -75,7 +75,7 @@ final class AppSettings {
         case enableKeyShareOnInvite
         case knockingEnabled
         case threadsEnabled
-        case developerOptionsEnabled
+        case roomThreadListEnabled
         case linkPreviewsEnabled
         case focusEventOnNotificationTap
         case linkNewDeviceEnabled
@@ -85,6 +85,8 @@ final class AppSettings {
         // Doug's tweaks 🔧
         case hideUnreadMessagesBadge
         case hideQuietNotificationAlerts
+        
+        case developerOptionsEnabled
     }
     
     private static var suiteName: String = InfoPlistReader.main.appGroupIdentifier
@@ -429,6 +431,9 @@ final class AppSettings {
     @UserPreference(key: UserDefaultsKeys.threadsEnabled, defaultValue: false, storageType: .userDefaults(store))
     var threadsEnabled
     
+    @UserPreference(key: UserDefaultsKeys.roomThreadListEnabled, defaultValue: false, storageType: .userDefaults(store))
+    var roomThreadListEnabled
+    
     @UserPreference(key: UserDefaultsKeys.focusEventOnNotificationTap, defaultValue: false, storageType: .userDefaults(store))
     var focusEventOnNotificationTap
         

ElementX/Sources/Screens/RoomScreen/RoomScreenModels.swift

@@ -62,6 +62,7 @@ struct RoomScreenViewState: BindableState {
         isCallingEnabled && !isParticipatingInOngoingCall // Hide the join call button when already in the call
     }
     
+    var roomThreadListEnabled = false
     var isKnockingEnabled = false
     var isKnockableRoom = false
     var canAcceptKnocks = false

ElementX/Sources/Screens/RoomScreen/RoomScreenViewModel.swift

@@ -164,6 +164,10 @@ class RoomScreenViewModel: RoomScreenViewModelType, RoomScreenViewModelProtocol
     // MARK: - Private
     
     private func setupSubscriptions(ongoingCallRoomIDPublisher: CurrentValuePublisher<String?, Never>) {
+        appSettings.$roomThreadListEnabled
+            .weakAssign(to: \.state.roomThreadListEnabled, on: self)
+            .store(in: &cancellables)
+        
         appSettings.$knockingEnabled
             .weakAssign(to: \.state.isKnockingEnabled, on: self)
             .store(in: &cancellables)

ElementX/Sources/Screens/RoomScreen/View/RoomScreen.swift

@@ -179,6 +179,8 @@ struct RoomScreen: View {
                 }
             }
         }
+        
+        if context.viewState.roomThreadListEnabled {
             if #available(iOS 26, *) {
                 ToolbarSpacer(.fixed, placement: .primaryAction)
             }
@@ -190,6 +192,7 @@ struct RoomScreen: View {
                     CompoundIcon(\.threads)
                 }
             }
+        }
     }
     
     @ViewBuilder

ElementX/Sources/Screens/Settings/DeveloperOptionsScreen/DeveloperOptionsScreenModels.swift

@@ -71,6 +71,8 @@ protocol DeveloperOptionsProtocol: AnyObject {
     var liveLocationSharingEnabled: Bool { get set }
     
     var floatingTimelineDateEnabled: Bool { get set }
+    
+    var roomThreadListEnabled: Bool { get set }
 }
 
 extension AppSettings: DeveloperOptionsProtocol { }

ElementX/Sources/Screens/Settings/DeveloperOptionsScreen/View/DeveloperOptionsScreen.swift

@@ -69,7 +69,11 @@ struct DeveloperOptionsScreen: View {
                 }
             }
             
-            Section("Timeline") {
+            Section("Room") {
+                Toggle(isOn: $context.roomThreadListEnabled) {
+                    Text("Room thread list")
+                }
+                
                 Toggle(isOn: $context.linkPreviewsEnabled) {
                     Text("Link previews")
                     Text("Follows the timeline media visibility settings.")
@@ -80,14 +84,12 @@ struct DeveloperOptionsScreen: View {
                 Toggle(isOn: $context.liveLocationSharingEnabled) {
                     Text("Live location sharing")
                 }
-                
+
                 Toggle(isOn: $context.floatingTimelineDateEnabled) {
                     Text("Floating timeline date")
                     Text("Shows a floating date badge while scrolling the timeline.")
                 }
-            }
-                        
-            Section("Join rules") {
+                
                 Toggle(isOn: $context.knockingEnabled) {
                     Text("Knocking")
                     Text("Ask to join rooms")