diff --git a/Examples/xx-messenger/.swiftpm/xcode/xcshareddata/xcschemes/ChatFeature.xcscheme b/Examples/xx-messenger/.swiftpm/xcode/xcshareddata/xcschemes/ChatFeature.xcscheme
new file mode 100644
index 0000000000000000000000000000000000000000..36b050b6723be25e47fd61ca191fa2b0859600da
--- /dev/null
+++ b/Examples/xx-messenger/.swiftpm/xcode/xcshareddata/xcschemes/ChatFeature.xcscheme
@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1400"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "ChatFeature"
+               BuildableName = "ChatFeature"
+               BlueprintName = "ChatFeature"
+               ReferencedContainer = "container:">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      codeCoverageEnabled = "YES">
+      <Testables>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "ChatFeatureTests"
+               BuildableName = "ChatFeatureTests"
+               BlueprintName = "ChatFeatureTests"
+               ReferencedContainer = "container:">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "ChatFeature"
+            BuildableName = "ChatFeature"
+            BlueprintName = "ChatFeature"
+            ReferencedContainer = "container:">
+         </BuildableReference>
+      </MacroExpansion>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>
diff --git a/Examples/xx-messenger/Package.swift b/Examples/xx-messenger/Package.swift
index 8b52ce874bc2b789a2f9e74a33311738e4bdf7d4..30fbcb51088320e8e8cfd3264b8b40e476d1ce49 100644
--- a/Examples/xx-messenger/Package.swift
+++ b/Examples/xx-messenger/Package.swift
@@ -20,6 +20,7 @@ let package = Package(
   products: [
     .library(name: "AppCore", targets: ["AppCore"]),
     .library(name: "AppFeature", targets: ["AppFeature"]),
+    .library(name: "ChatFeature", targets: ["ChatFeature"]),
     .library(name: "CheckContactAuthFeature", targets: ["CheckContactAuthFeature"]),
     .library(name: "ConfirmRequestFeature", targets: ["ConfirmRequestFeature"]),
     .library(name: "ContactFeature", targets: ["ContactFeature"]),
@@ -101,6 +102,20 @@ let package = Package(
       ],
       swiftSettings: swiftSettings
     ),
+    .target(
+      name: "ChatFeature",
+      dependencies: [
+        .product(name: "ComposableArchitecture", package: "swift-composable-architecture"),
+      ],
+      swiftSettings: swiftSettings
+    ),
+    .testTarget(
+      name: "ChatFeatureTests",
+      dependencies: [
+        .target(name: "ChatFeature"),
+      ],
+      swiftSettings: swiftSettings
+    ),
     .target(
       name: "CheckContactAuthFeature",
       dependencies: [
diff --git a/Examples/xx-messenger/Project/XXMessenger.xcodeproj/xcshareddata/xcschemes/XXMessenger.xcscheme b/Examples/xx-messenger/Project/XXMessenger.xcodeproj/xcshareddata/xcschemes/XXMessenger.xcscheme
index 0e5e54ad091bf310eb399f185b4c8680fed98e07..65400dff681f98714be5c8db74bc82b6558dfe17 100644
--- a/Examples/xx-messenger/Project/XXMessenger.xcodeproj/xcshareddata/xcschemes/XXMessenger.xcscheme
+++ b/Examples/xx-messenger/Project/XXMessenger.xcodeproj/xcshareddata/xcschemes/XXMessenger.xcscheme
@@ -49,6 +49,16 @@
                ReferencedContainer = "container:..">
             </BuildableReference>
          </TestableReference>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "ChatFeatureTests"
+               BuildableName = "ChatFeatureTests"
+               BlueprintName = "ChatFeatureTests"
+               ReferencedContainer = "container:..">
+            </BuildableReference>
+         </TestableReference>
          <TestableReference
             skipped = "NO">
             <BuildableReference
diff --git a/Examples/xx-messenger/Sources/ChatFeature/ChatFeature.swift b/Examples/xx-messenger/Sources/ChatFeature/ChatFeature.swift
new file mode 100644
index 0000000000000000000000000000000000000000..d95eabcec080e576112d7f51078b4d476c485d5e
--- /dev/null
+++ b/Examples/xx-messenger/Sources/ChatFeature/ChatFeature.swift
@@ -0,0 +1,37 @@
+import ComposableArchitecture
+import Foundation
+import XCTestDynamicOverlay
+
+public struct ChatState: Equatable, Identifiable {
+  public enum ID: Equatable, Hashable {
+    case contact(Data)
+  }
+
+  public init(id: ID) {
+    self.id = id
+  }
+
+  public var id: ID
+}
+
+public enum ChatAction: Equatable {
+  case start
+}
+
+public struct ChatEnvironment {
+  public init() {}
+}
+
+#if DEBUG
+extension ChatEnvironment {
+  public static let unimplemented = ChatEnvironment()
+}
+#endif
+
+public let chatReducer = Reducer<ChatState, ChatAction, ChatEnvironment>
+{ state, action, env in
+  switch action {
+  case .start:
+    return .none
+  }
+}
diff --git a/Examples/xx-messenger/Sources/ChatFeature/ChatView.swift b/Examples/xx-messenger/Sources/ChatFeature/ChatView.swift
new file mode 100644
index 0000000000000000000000000000000000000000..d3016743d6a7d9ab1d8610455f48761acf21edb9
--- /dev/null
+++ b/Examples/xx-messenger/Sources/ChatFeature/ChatView.swift
@@ -0,0 +1,37 @@
+import ComposableArchitecture
+import SwiftUI
+
+public struct ChatView: View {
+  public init(store: Store<ChatState, ChatAction>) {
+    self.store = store
+  }
+
+  let store: Store<ChatState, ChatAction>
+
+  struct ViewState: Equatable {
+    init(state: ChatState) {}
+  }
+
+  public var body: some View {
+    WithViewStore(store, observe: ViewState.init) { viewStore in
+      Text("ChatView")
+        .task { viewStore.send(.start) }
+    }
+  }
+}
+
+#if DEBUG
+public struct ChatView_Previews: PreviewProvider {
+  public static var previews: some View {
+    NavigationView {
+      ChatView(store: Store(
+        initialState: ChatState(
+          id: .contact("contact-id".data(using: .utf8)!)
+        ),
+        reducer: .empty,
+        environment: ()
+      ))
+    }
+  }
+}
+#endif
diff --git a/Examples/xx-messenger/Tests/ChatFeatureTests/ChatFeatureTests.swift b/Examples/xx-messenger/Tests/ChatFeatureTests/ChatFeatureTests.swift
new file mode 100644
index 0000000000000000000000000000000000000000..0068e667cc3a3dc84a0605c8d13e7843ef874eb8
--- /dev/null
+++ b/Examples/xx-messenger/Tests/ChatFeatureTests/ChatFeatureTests.swift
@@ -0,0 +1,17 @@
+import ComposableArchitecture
+import XCTest
+@testable import ChatFeature
+
+final class ChatFeatureTests: XCTestCase {
+  func testStart() {
+    let contactId = "contact-id".data(using: .utf8)!
+
+    let store = TestStore(
+      initialState: ChatState(id: .contact(contactId)),
+      reducer: chatReducer,
+      environment: .unimplemented
+    )
+
+    store.send(.start)
+  }
+}