diff --git a/apps/ios/Sources/Bridge/BridgeConnectionController.swift b/apps/ios/Sources/Bridge/BridgeConnectionController.swift
index 48013f20c..25e25a774 100644
--- a/apps/ios/Sources/Bridge/BridgeConnectionController.swift
+++ b/apps/ios/Sources/Bridge/BridgeConnectionController.swift
@@ -1,18 +1,18 @@
 import ClawdisKit
-import Combine
 import Foundation
 import Network
+import Observation
 import SwiftUI
 
 @MainActor
-final class BridgeConnectionController: ObservableObject {
-    @Published private(set) var bridges: [BridgeDiscoveryModel.DiscoveredBridge] = []
-    @Published private(set) var discoveryStatusText: String = "Idle"
-    @Published private(set) var discoveryDebugLog: [BridgeDiscoveryModel.DebugLogEntry] = []
+@Observable
+final class BridgeConnectionController {
+    private(set) var bridges: [BridgeDiscoveryModel.DiscoveredBridge] = []
+    private(set) var discoveryStatusText: String = "Idle"
+    private(set) var discoveryDebugLog: [BridgeDiscoveryModel.DebugLogEntry] = []
 
     private let discovery = BridgeDiscoveryModel()
     private weak var appModel: NodeAppModel?
-    private var cancellables = Set<AnyCancellable>()
     private var didAutoConnect = false
     private var seenStableIDs = Set<String>()
 
@@ -23,20 +23,8 @@ final class BridgeConnectionController: ObservableObject {
         self.discovery.setDebugLoggingEnabled(
             UserDefaults.standard.bool(forKey: "bridge.discovery.debugLogs"))
 
-        self.discovery.$bridges
-            .sink { [weak self] newValue in
-                guard let self else { return }
-                self.bridges = newValue
-                self.updateLastDiscoveredBridge(from: newValue)
-                self.maybeAutoConnect()
-            }
-            .store(in: &self.cancellables)
-
-        self.discovery.$statusText
-            .assign(to: &self.$discoveryStatusText)
-
-        self.discovery.$debugLog
-            .assign(to: &self.$discoveryDebugLog)
+        self.updateFromDiscovery()
+        self.observeDiscovery()
 
         if startDiscovery {
             self.discovery.start()
@@ -58,6 +46,29 @@ final class BridgeConnectionController: ObservableObject {
         }
     }
 
+    private func updateFromDiscovery() {
+        let newBridges = self.discovery.bridges
+        self.bridges = newBridges
+        self.discoveryStatusText = self.discovery.statusText
+        self.discoveryDebugLog = self.discovery.debugLog
+        self.updateLastDiscoveredBridge(from: newBridges)
+        self.maybeAutoConnect()
+    }
+
+    private func observeDiscovery() {
+        withObservationTracking {
+            _ = self.discovery.bridges
+            _ = self.discovery.statusText
+            _ = self.discovery.debugLog
+        } onChange: { [weak self] in
+            Task { @MainActor in
+                guard let self else { return }
+                self.updateFromDiscovery()
+                self.observeDiscovery()
+            }
+        }
+    }
+
     private func maybeAutoConnect() {
         guard !self.didAutoConnect else { return }
         guard let appModel = self.appModel else { return }
diff --git a/apps/ios/Sources/Bridge/BridgeDiscoveryDebugLogView.swift b/apps/ios/Sources/Bridge/BridgeDiscoveryDebugLogView.swift
index 8091b1cc6..26a946213 100644
--- a/apps/ios/Sources/Bridge/BridgeDiscoveryDebugLogView.swift
+++ b/apps/ios/Sources/Bridge/BridgeDiscoveryDebugLogView.swift
@@ -2,7 +2,7 @@ import SwiftUI
 import UIKit
 
 struct BridgeDiscoveryDebugLogView: View {
-    @EnvironmentObject private var bridgeController: BridgeConnectionController
+    @Environment(BridgeConnectionController.self) private var bridgeController
     @AppStorage("bridge.discovery.debugLogs") private var debugLogsEnabled: Bool = false
 
     var body: some View {
diff --git a/apps/ios/Sources/Bridge/BridgeDiscoveryModel.swift b/apps/ios/Sources/Bridge/BridgeDiscoveryModel.swift
index 1bffbf878..dbe31189c 100644
--- a/apps/ios/Sources/Bridge/BridgeDiscoveryModel.swift
+++ b/apps/ios/Sources/Bridge/BridgeDiscoveryModel.swift
@@ -1,9 +1,11 @@
 import ClawdisKit
 import Foundation
 import Network
+import Observation
 
 @MainActor
-final class BridgeDiscoveryModel: ObservableObject {
+@Observable
+final class BridgeDiscoveryModel {
     struct DebugLogEntry: Identifiable, Equatable {
         var id = UUID()
         var ts: Date
@@ -18,9 +20,9 @@ final class BridgeDiscoveryModel: ObservableObject {
         var debugID: String
     }
 
-    @Published var bridges: [DiscoveredBridge] = []
-    @Published var statusText: String = "Idle"
-    @Published private(set) var debugLog: [DebugLogEntry] = []
+    var bridges: [DiscoveredBridge] = []
+    var statusText: String = "Idle"
+    private(set) var debugLog: [DebugLogEntry] = []
 
     private var browser: NWBrowser?
     private var debugLoggingEnabled = false
diff --git a/apps/ios/Sources/Chat/ChatSheet.swift b/apps/ios/Sources/Chat/ChatSheet.swift
index 9ce28fbc5..706a6b789 100644
--- a/apps/ios/Sources/Chat/ChatSheet.swift
+++ b/apps/ios/Sources/Chat/ChatSheet.swift
@@ -3,12 +3,12 @@ import SwiftUI
 
 struct ChatSheet: View {
     @Environment(\.dismiss) private var dismiss
-    @StateObject private var viewModel: ClawdisChatViewModel
+    @State private var viewModel: ClawdisChatViewModel
 
     init(bridge: BridgeSession, sessionKey: String = "main") {
         let transport = IOSBridgeChatTransport(bridge: bridge)
-        self._viewModel = StateObject(
-            wrappedValue: ClawdisChatViewModel(
+        self._viewModel = State(
+            initialValue: ClawdisChatViewModel(
                 sessionKey: sessionKey,
                 transport: transport))
     }
diff --git a/apps/ios/Sources/ClawdisApp.swift b/apps/ios/Sources/ClawdisApp.swift
index 89bf736df..d4c5cbd79 100644
--- a/apps/ios/Sources/ClawdisApp.swift
+++ b/apps/ios/Sources/ClawdisApp.swift
@@ -2,23 +2,23 @@ import SwiftUI
 
 @main
 struct ClawdisApp: App {
-    @StateObject private var appModel: NodeAppModel
-    @StateObject private var bridgeController: BridgeConnectionController
+    @State private var appModel: NodeAppModel
+    @State private var bridgeController: BridgeConnectionController
     @Environment(\.scenePhase) private var scenePhase
 
     init() {
         BridgeSettingsStore.bootstrapPersistence()
         let appModel = NodeAppModel()
-        _appModel = StateObject(wrappedValue: appModel)
-        _bridgeController = StateObject(wrappedValue: BridgeConnectionController(appModel: appModel))
+        _appModel = State(initialValue: appModel)
+        _bridgeController = State(initialValue: BridgeConnectionController(appModel: appModel))
     }
 
     var body: some Scene {
         WindowGroup {
             RootCanvas()
-                .environmentObject(self.appModel)
-                .environmentObject(self.appModel.voiceWake)
-                .environmentObject(self.bridgeController)
+                .environment(self.appModel)
+                .environment(self.appModel.voiceWake)
+                .environment(self.bridgeController)
                 .onOpenURL { url in
                     Task { await self.appModel.handleDeepLink(url: url) }
                 }
diff --git a/apps/ios/Sources/Model/NodeAppModel.swift b/apps/ios/Sources/Model/NodeAppModel.swift
index 8af819881..c6735013d 100644
--- a/apps/ios/Sources/Model/NodeAppModel.swift
+++ b/apps/ios/Sources/Model/NodeAppModel.swift
@@ -1,16 +1,18 @@
 import ClawdisKit
 import Network
+import Observation
 import SwiftUI
 
 @MainActor
-final class NodeAppModel: ObservableObject {
-    @Published var isBackgrounded: Bool = false
+@Observable
+final class NodeAppModel {
+    var isBackgrounded: Bool = false
     let screen = ScreenController()
     let camera = CameraController()
-    @Published var bridgeStatusText: String = "Not connected"
-    @Published var bridgeServerName: String?
-    @Published var bridgeRemoteAddress: String?
-    @Published var connectedBridgeID: String?
+    var bridgeStatusText: String = "Not connected"
+    var bridgeServerName: String?
+    var bridgeRemoteAddress: String?
+    var connectedBridgeID: String?
 
     private let bridge = BridgeSession()
     private var bridgeTask: Task<Void, Never>?
diff --git a/apps/ios/Sources/RootCanvas.swift b/apps/ios/Sources/RootCanvas.swift
index 95d635dfb..9def87f22 100644
--- a/apps/ios/Sources/RootCanvas.swift
+++ b/apps/ios/Sources/RootCanvas.swift
@@ -1,8 +1,8 @@
 import SwiftUI
 
 struct RootCanvas: View {
-    @EnvironmentObject private var appModel: NodeAppModel
-    @EnvironmentObject private var voiceWake: VoiceWakeManager
+    @Environment(NodeAppModel.self) private var appModel
+    @Environment(VoiceWakeManager.self) private var voiceWake
     @AppStorage(VoiceWakePreferences.enabledKey) private var voiceWakeEnabled: Bool = false
     @State private var presentedSheet: PresentedSheet?
     @State private var voiceWakeToastText: String?
diff --git a/apps/ios/Sources/RootTabs.swift b/apps/ios/Sources/RootTabs.swift
index 169234aa0..dc2508895 100644
--- a/apps/ios/Sources/RootTabs.swift
+++ b/apps/ios/Sources/RootTabs.swift
@@ -1,8 +1,8 @@
 import SwiftUI
 
 struct RootTabs: View {
-    @EnvironmentObject private var appModel: NodeAppModel
-    @EnvironmentObject private var voiceWake: VoiceWakeManager
+    @Environment(NodeAppModel.self) private var appModel
+    @Environment(VoiceWakeManager.self) private var voiceWake
     @AppStorage(VoiceWakePreferences.enabledKey) private var voiceWakeEnabled: Bool = false
     @State private var selectedTab: Int = 0
     @State private var voiceWakeToastText: String?
diff --git a/apps/ios/Sources/Screen/ScreenController.swift b/apps/ios/Sources/Screen/ScreenController.swift
index e48a797b9..6d53ec338 100644
--- a/apps/ios/Sources/Screen/ScreenController.swift
+++ b/apps/ios/Sources/Screen/ScreenController.swift
@@ -1,14 +1,16 @@
 import ClawdisKit
+import Observation
 import SwiftUI
 import WebKit
 
 @MainActor
-final class ScreenController: ObservableObject {
+@Observable
+final class ScreenController {
     let webView: WKWebView
 
-    @Published var mode: ClawdisScreenMode = .canvas
-    @Published var urlString: String = ""
-    @Published var errorText: String?
+    var mode: ClawdisScreenMode = .canvas
+    var urlString: String = ""
+    var errorText: String?
 
     init() {
         let config = WKWebViewConfiguration()
diff --git a/apps/ios/Sources/Screen/ScreenTab.swift b/apps/ios/Sources/Screen/ScreenTab.swift
index 893450525..aff9320c7 100644
--- a/apps/ios/Sources/Screen/ScreenTab.swift
+++ b/apps/ios/Sources/Screen/ScreenTab.swift
@@ -2,7 +2,7 @@ import ClawdisKit
 import SwiftUI
 
 struct ScreenTab: View {
-    @EnvironmentObject private var appModel: NodeAppModel
+    @Environment(NodeAppModel.self) private var appModel
 
     var body: some View {
         ZStack(alignment: .top) {
diff --git a/apps/ios/Sources/Screen/ScreenWebView.swift b/apps/ios/Sources/Screen/ScreenWebView.swift
index 7d141d57a..c7cb229d0 100644
--- a/apps/ios/Sources/Screen/ScreenWebView.swift
+++ b/apps/ios/Sources/Screen/ScreenWebView.swift
@@ -3,7 +3,7 @@ import SwiftUI
 import WebKit
 
 struct ScreenWebView: UIViewRepresentable {
-    @ObservedObject var controller: ScreenController
+    var controller: ScreenController
 
     func makeUIView(context: Context) -> WKWebView {
         self.controller.webView
diff --git a/apps/ios/Sources/Settings/SettingsTab.swift b/apps/ios/Sources/Settings/SettingsTab.swift
index a8fb4cf72..c4eb2ffed 100644
--- a/apps/ios/Sources/Settings/SettingsTab.swift
+++ b/apps/ios/Sources/Settings/SettingsTab.swift
@@ -1,19 +1,21 @@
 import ClawdisKit
 import Network
+import Observation
 import SwiftUI
 import UIKit
 
 @MainActor
-private final class ConnectStatusStore: ObservableObject {
-    @Published var text: String?
+@Observable
+private final class ConnectStatusStore {
+    var text: String?
 }
 
 extension ConnectStatusStore: @unchecked Sendable {}
 
 struct SettingsTab: View {
-    @EnvironmentObject private var appModel: NodeAppModel
-    @EnvironmentObject private var voiceWake: VoiceWakeManager
-    @EnvironmentObject private var bridgeController: BridgeConnectionController
+    @Environment(NodeAppModel.self) private var appModel: NodeAppModel
+    @Environment(VoiceWakeManager.self) private var voiceWake: VoiceWakeManager
+    @Environment(BridgeConnectionController.self) private var bridgeController: BridgeConnectionController
     @Environment(\.dismiss) private var dismiss
     @AppStorage("node.displayName") private var displayName: String = "iOS Node"
     @AppStorage("node.instanceId") private var instanceId: String = UUID().uuidString
@@ -25,7 +27,7 @@ struct SettingsTab: View {
     @AppStorage("bridge.manual.host") private var manualBridgeHost: String = ""
     @AppStorage("bridge.manual.port") private var manualBridgePort: Int = 18790
     @AppStorage("bridge.discovery.debugLogs") private var discoveryDebugLogsEnabled: Bool = false
-    @StateObject private var connectStatus = ConnectStatusStore()
+    @State private var connectStatus = ConnectStatusStore()
     @State private var connectingBridgeID: String?
     @State private var localIPAddress: String?
 
@@ -264,6 +266,7 @@ struct SettingsTab: View {
         defer { self.connectingBridgeID = nil }
 
         do {
+            let statusStore = self.connectStatus
             let existing = KeychainStore.loadString(
                 service: "com.steipete.clawdis.bridge",
                 account: self.keychainAccount())
@@ -281,9 +284,8 @@ struct SettingsTab: View {
                 endpoint: bridge.endpoint,
                 hello: hello,
                 onStatus: { status in
-                    let store = self.connectStatus
                     Task { @MainActor in
-                        store.text = status
+                        statusStore.text = status
                     }
                 })
 
@@ -330,6 +332,7 @@ struct SettingsTab: View {
         let endpoint: NWEndpoint = .hostPort(host: NWEndpoint.Host(host), port: port)
 
         do {
+            let statusStore = self.connectStatus
             let existing = KeychainStore.loadString(
                 service: "com.steipete.clawdis.bridge",
                 account: self.keychainAccount())
@@ -347,9 +350,8 @@ struct SettingsTab: View {
                 endpoint: endpoint,
                 hello: hello,
                 onStatus: { status in
-                    let store = self.connectStatus
                     Task { @MainActor in
-                        store.text = status
+                        statusStore.text = status
                     }
                 })
 
diff --git a/apps/ios/Sources/Voice/VoiceTab.swift b/apps/ios/Sources/Voice/VoiceTab.swift
index 53e762f3b..59e1cd6d4 100644
--- a/apps/ios/Sources/Voice/VoiceTab.swift
+++ b/apps/ios/Sources/Voice/VoiceTab.swift
@@ -1,8 +1,8 @@
 import SwiftUI
 
 struct VoiceTab: View {
-    @EnvironmentObject private var appModel: NodeAppModel
-    @EnvironmentObject private var voiceWake: VoiceWakeManager
+    @Environment(NodeAppModel.self) private var appModel
+    @Environment(VoiceWakeManager.self) private var voiceWake
     @AppStorage("voiceWake.enabled") private var voiceWakeEnabled: Bool = false
 
     var body: some View {
diff --git a/apps/ios/Sources/Voice/VoiceWakeManager.swift b/apps/ios/Sources/Voice/VoiceWakeManager.swift
index aef96b06b..7807d1ea6 100644
--- a/apps/ios/Sources/Voice/VoiceWakeManager.swift
+++ b/apps/ios/Sources/Voice/VoiceWakeManager.swift
@@ -1,5 +1,6 @@
 import AVFAudio
 import Foundation
+import Observation
 import Speech
 
 private func makeAudioTapEnqueueCallback(queue: AudioBufferQueue) -> @Sendable (AVAudioPCMBuffer, AVAudioTime) -> Void {
@@ -76,12 +77,13 @@ extension AVAudioPCMBuffer {
 }
 
 @MainActor
-final class VoiceWakeManager: NSObject, ObservableObject {
-    @Published var isEnabled: Bool = false
-    @Published var isListening: Bool = false
-    @Published var statusText: String = "Off"
-    @Published var triggerWords: [String] = VoiceWakePreferences.loadTriggerWords()
-    @Published var lastTriggeredCommand: String?
+@Observable
+final class VoiceWakeManager: NSObject {
+    var isEnabled: Bool = false
+    var isListening: Bool = false
+    var statusText: String = "Off"
+    var triggerWords: [String] = VoiceWakePreferences.loadTriggerWords()
+    var lastTriggeredCommand: String?
 
     private let audioEngine = AVAudioEngine()
     private var speechRecognizer: SFSpeechRecognizer?
diff --git a/apps/macos/Sources/Clawdis/AgentEventStore.swift b/apps/macos/Sources/Clawdis/AgentEventStore.swift
index 369a5d687..780867a32 100644
--- a/apps/macos/Sources/Clawdis/AgentEventStore.swift
+++ b/apps/macos/Sources/Clawdis/AgentEventStore.swift
@@ -1,10 +1,12 @@
 import Foundation
+import Observation
 
 @MainActor
-final class AgentEventStore: ObservableObject {
+@Observable
+final class AgentEventStore {
     static let shared = AgentEventStore()
 
-    @Published private(set) var events: [ControlAgentEvent] = []
+    private(set) var events: [ControlAgentEvent] = []
     private let maxEvents = 400
 
     func append(_ event: ControlAgentEvent) {
diff --git a/apps/macos/Sources/Clawdis/AgentEventsWindow.swift b/apps/macos/Sources/Clawdis/AgentEventsWindow.swift
index cc4a8d1f4..f37961ae3 100644
--- a/apps/macos/Sources/Clawdis/AgentEventsWindow.swift
+++ b/apps/macos/Sources/Clawdis/AgentEventsWindow.swift
@@ -2,7 +2,7 @@ import SwiftUI
 
 @MainActor
 struct AgentEventsWindow: View {
-    @ObservedObject private var store = AgentEventStore.shared
+    private let store = AgentEventStore.shared
 
     var body: some View {
         VStack(alignment: .leading, spacing: 6) {
diff --git a/apps/macos/Sources/Clawdis/AppState.swift b/apps/macos/Sources/Clawdis/AppState.swift
index f567e30df..1b250f389 100644
--- a/apps/macos/Sources/Clawdis/AppState.swift
+++ b/apps/macos/Sources/Clawdis/AppState.swift
@@ -1,10 +1,12 @@
 import AppKit
 import Foundation
+import Observation
 import ServiceManagement
 import SwiftUI
 
 @MainActor
-final class AppState: ObservableObject {
+@Observable
+final class AppState {
     private let isPreview: Bool
     private var suppressVoiceWakeGlobalSync = false
     private var voiceWakeGlobalSyncTask: Task<Void, Never>?
@@ -19,26 +21,26 @@ final class AppState: ObservableObject {
         case remote
     }
 
-    @Published var isPaused: Bool {
+    var isPaused: Bool {
         didSet { self.ifNotPreview { UserDefaults.standard.set(self.isPaused, forKey: pauseDefaultsKey) } }
     }
 
-    @Published var launchAtLogin: Bool {
+    var launchAtLogin: Bool {
         didSet { self.ifNotPreview { Task { AppStateStore.updateLaunchAtLogin(enabled: self.launchAtLogin) } } }
     }
 
-    @Published var onboardingSeen: Bool {
+    var onboardingSeen: Bool {
         didSet { self.ifNotPreview { UserDefaults.standard.set(self.onboardingSeen, forKey: "clawdis.onboardingSeen") }
         }
     }
 
-    @Published var debugPaneEnabled: Bool {
+    var debugPaneEnabled: Bool {
         didSet {
             self.ifNotPreview { UserDefaults.standard.set(self.debugPaneEnabled, forKey: "clawdis.debugPaneEnabled") }
         }
     }
 
-    @Published var swabbleEnabled: Bool {
+    var swabbleEnabled: Bool {
         didSet {
             self.ifNotPreview {
                 UserDefaults.standard.set(self.swabbleEnabled, forKey: swabbleEnabledKey)
@@ -47,7 +49,7 @@ final class AppState: ObservableObject {
         }
     }
 
-    @Published var swabbleTriggerWords: [String] {
+    var swabbleTriggerWords: [String] {
         didSet {
             // Preserve the raw editing state; sanitization happens when we actually use the triggers.
             self.ifNotPreview {
@@ -60,21 +62,21 @@ final class AppState: ObservableObject {
         }
     }
 
-    @Published var voiceWakeTriggerChime: VoiceWakeChime {
+    var voiceWakeTriggerChime: VoiceWakeChime {
         didSet { self.ifNotPreview { self.storeChime(self.voiceWakeTriggerChime, key: voiceWakeTriggerChimeKey) } }
     }
 
-    @Published var voiceWakeSendChime: VoiceWakeChime {
+    var voiceWakeSendChime: VoiceWakeChime {
         didSet { self.ifNotPreview { self.storeChime(self.voiceWakeSendChime, key: voiceWakeSendChimeKey) } }
     }
 
-    @Published var iconAnimationsEnabled: Bool {
+    var iconAnimationsEnabled: Bool {
         didSet { self.ifNotPreview { UserDefaults.standard.set(
             self.iconAnimationsEnabled,
             forKey: iconAnimationsEnabledKey) } }
     }
 
-    @Published var showDockIcon: Bool {
+    var showDockIcon: Bool {
         didSet {
             self.ifNotPreview {
                 UserDefaults.standard.set(self.showDockIcon, forKey: showDockIconKey)
@@ -83,7 +85,7 @@ final class AppState: ObservableObject {
         }
     }
 
-    @Published var voiceWakeMicID: String {
+    var voiceWakeMicID: String {
         didSet {
             self.ifNotPreview {
                 UserDefaults.standard.set(self.voiceWakeMicID, forKey: voiceWakeMicKey)
@@ -94,7 +96,7 @@ final class AppState: ObservableObject {
         }
     }
 
-    @Published var voiceWakeLocaleID: String {
+    var voiceWakeLocaleID: String {
         didSet {
             self.ifNotPreview {
                 UserDefaults.standard.set(self.voiceWakeLocaleID, forKey: voiceWakeLocaleKey)
@@ -105,27 +107,27 @@ final class AppState: ObservableObject {
         }
     }
 
-    @Published var voiceWakeAdditionalLocaleIDs: [String] {
+    var voiceWakeAdditionalLocaleIDs: [String] {
         didSet { self.ifNotPreview { UserDefaults.standard.set(
             self.voiceWakeAdditionalLocaleIDs,
             forKey: voiceWakeAdditionalLocalesKey) } }
     }
 
-    @Published var voicePushToTalkEnabled: Bool {
+    var voicePushToTalkEnabled: Bool {
         didSet { self.ifNotPreview { UserDefaults.standard.set(
             self.voicePushToTalkEnabled,
             forKey: voicePushToTalkEnabledKey) } }
     }
 
-    @Published var iconOverride: IconOverrideSelection {
+    var iconOverride: IconOverrideSelection {
         didSet { self.ifNotPreview { UserDefaults.standard.set(self.iconOverride.rawValue, forKey: iconOverrideKey) } }
     }
 
-    @Published var isWorking: Bool = false
-    @Published var earBoostActive: Bool = false
-    @Published var blinkTick: Int = 0
-    @Published var sendCelebrationTick: Int = 0
-    @Published var heartbeatsEnabled: Bool {
+    var isWorking: Bool = false
+    var earBoostActive: Bool = false
+    var blinkTick: Int = 0
+    var sendCelebrationTick: Int = 0
+    var heartbeatsEnabled: Bool {
         didSet {
             self.ifNotPreview {
                 UserDefaults.standard.set(self.heartbeatsEnabled, forKey: heartbeatsEnabledKey)
@@ -134,31 +136,31 @@ final class AppState: ObservableObject {
         }
     }
 
-    @Published var connectionMode: ConnectionMode {
+    var connectionMode: ConnectionMode {
         didSet {
             self.ifNotPreview { UserDefaults.standard.set(self.connectionMode.rawValue, forKey: connectionModeKey) }
         }
     }
 
-    @Published var webChatEnabled: Bool {
+    var webChatEnabled: Bool {
         didSet { self.ifNotPreview { UserDefaults.standard.set(self.webChatEnabled, forKey: webChatEnabledKey) } }
     }
 
-    @Published var webChatSwiftUIEnabled: Bool {
+    var webChatSwiftUIEnabled: Bool {
         didSet { self.ifNotPreview { UserDefaults.standard.set(
             self.webChatSwiftUIEnabled,
             forKey: webChatSwiftUIEnabledKey) } }
     }
 
-    @Published var webChatPort: Int {
+    var webChatPort: Int {
         didSet { self.ifNotPreview { UserDefaults.standard.set(self.webChatPort, forKey: webChatPortKey) } }
     }
 
-    @Published var canvasEnabled: Bool {
+    var canvasEnabled: Bool {
         didSet { self.ifNotPreview { UserDefaults.standard.set(self.canvasEnabled, forKey: canvasEnabledKey) } }
     }
 
-    @Published var peekabooBridgeEnabled: Bool {
+    var peekabooBridgeEnabled: Bool {
         didSet {
             self.ifNotPreview {
                 UserDefaults.standard.set(self.peekabooBridgeEnabled, forKey: peekabooBridgeEnabledKey)
@@ -167,7 +169,7 @@ final class AppState: ObservableObject {
         }
     }
 
-    @Published var attachExistingGatewayOnly: Bool {
+    var attachExistingGatewayOnly: Bool {
         didSet {
             self.ifNotPreview {
                 UserDefaults.standard.set(self.attachExistingGatewayOnly, forKey: attachExistingGatewayOnlyKey)
@@ -175,15 +177,15 @@ final class AppState: ObservableObject {
         }
     }
 
-    @Published var remoteTarget: String {
+    var remoteTarget: String {
         didSet { self.ifNotPreview { UserDefaults.standard.set(self.remoteTarget, forKey: remoteTargetKey) } }
     }
 
-    @Published var remoteIdentity: String {
+    var remoteIdentity: String {
         didSet { self.ifNotPreview { UserDefaults.standard.set(self.remoteIdentity, forKey: remoteIdentityKey) } }
     }
 
-    @Published var remoteProjectRoot: String {
+    var remoteProjectRoot: String {
         didSet { self.ifNotPreview { UserDefaults.standard.set(self.remoteProjectRoot, forKey: remoteProjectRootKey) } }
     }
 
diff --git a/apps/macos/Sources/Clawdis/ControlChannel.swift b/apps/macos/Sources/Clawdis/ControlChannel.swift
index c62fa5d1d..92decf315 100644
--- a/apps/macos/Sources/Clawdis/ControlChannel.swift
+++ b/apps/macos/Sources/Clawdis/ControlChannel.swift
@@ -1,5 +1,6 @@
 import ClawdisProtocol
 import Foundation
+import Observation
 import OSLog
 import SwiftUI
 
@@ -36,7 +37,8 @@ enum ControlChannelError: Error, LocalizedError {
 }
 
 @MainActor
-final class ControlChannel: ObservableObject {
+@Observable
+final class ControlChannel {
     static let shared = ControlChannel()
 
     enum Mode {
@@ -51,8 +53,8 @@ final class ControlChannel: ObservableObject {
         case degraded(String)
     }
 
-    @Published private(set) var state: ConnectionState = .disconnected
-    @Published private(set) var lastPingMs: Double?
+    private(set) var state: ConnectionState = .disconnected
+    private(set) var lastPingMs: Double?
 
     private let logger = Logger(subsystem: "com.steipete.clawdis", category: "control")
 
diff --git a/apps/macos/Sources/Clawdis/CronJobsStore.swift b/apps/macos/Sources/Clawdis/CronJobsStore.swift
index 48a896332..b2d4a624d 100644
--- a/apps/macos/Sources/Clawdis/CronJobsStore.swift
+++ b/apps/macos/Sources/Clawdis/CronJobsStore.swift
@@ -1,23 +1,25 @@
 import ClawdisProtocol
 import Foundation
+import Observation
 import OSLog
 
 @MainActor
-final class CronJobsStore: ObservableObject {
+@Observable
+final class CronJobsStore {
     static let shared = CronJobsStore()
 
-    @Published var jobs: [CronJob] = []
-    @Published var selectedJobId: String?
-    @Published var runEntries: [CronRunLogEntry] = []
+    var jobs: [CronJob] = []
+    var selectedJobId: String?
+    var runEntries: [CronRunLogEntry] = []
 
-    @Published var schedulerEnabled: Bool?
-    @Published var schedulerStorePath: String?
-    @Published var schedulerNextWakeAtMs: Int?
+    var schedulerEnabled: Bool?
+    var schedulerStorePath: String?
+    var schedulerNextWakeAtMs: Int?
 
-    @Published var isLoadingJobs = false
-    @Published var isLoadingRuns = false
-    @Published var lastError: String?
-    @Published var statusMessage: String?
+    var isLoadingJobs = false
+    var isLoadingRuns = false
+    var lastError: String?
+    var statusMessage: String?
 
     private let logger = Logger(subsystem: "com.steipete.clawdis", category: "cron.ui")
     private var refreshTask: Task<Void, Never>?
diff --git a/apps/macos/Sources/Clawdis/CronSettings.swift b/apps/macos/Sources/Clawdis/CronSettings.swift
index f14b23345..c5d1bb016 100644
--- a/apps/macos/Sources/Clawdis/CronSettings.swift
+++ b/apps/macos/Sources/Clawdis/CronSettings.swift
@@ -1,7 +1,8 @@
+import Observation
 import SwiftUI
 
 struct CronSettings: View {
-    @ObservedObject var store: CronJobsStore
+    @Bindable var store: CronJobsStore
     @State private var showEditor = false
     @State private var editingJob: CronJob?
     @State private var editorError: String?
diff --git a/apps/macos/Sources/Clawdis/DebugSettings.swift b/apps/macos/Sources/Clawdis/DebugSettings.swift
index 02e548d67..e2f3b5f87 100644
--- a/apps/macos/Sources/Clawdis/DebugSettings.swift
+++ b/apps/macos/Sources/Clawdis/DebugSettings.swift
@@ -12,8 +12,8 @@ struct DebugSettings: View {
     @State private var modelsCount: Int?
     @State private var modelsLoading = false
     @State private var modelsError: String?
-    @ObservedObject private var gatewayManager = GatewayProcessManager.shared
-    @ObservedObject private var healthStore = HealthStore.shared
+    private let gatewayManager = GatewayProcessManager.shared
+    private let healthStore = HealthStore.shared
     @State private var gatewayRootInput: String = GatewayProcessManager.shared.projectRootPath()
     @State private var sessionStorePath: String = SessionLoader.defaultStorePath
     @State private var sessionStoreSaveError: String?
diff --git a/apps/macos/Sources/Clawdis/GatewayProcessManager.swift b/apps/macos/Sources/Clawdis/GatewayProcessManager.swift
index 07d14f5e3..1eadcd252 100644
--- a/apps/macos/Sources/Clawdis/GatewayProcessManager.swift
+++ b/apps/macos/Sources/Clawdis/GatewayProcessManager.swift
@@ -1,5 +1,6 @@
 import Foundation
 import Network
+import Observation
 import OSLog
 import Subprocess
 #if canImport(Darwin)
@@ -12,7 +13,8 @@ import SystemPackage
 #endif
 
 @MainActor
-final class GatewayProcessManager: ObservableObject {
+@Observable
+final class GatewayProcessManager {
     static let shared = GatewayProcessManager()
 
     enum Status: Equatable {
@@ -39,11 +41,11 @@ final class GatewayProcessManager: ObservableObject {
         }
     }
 
-    @Published private(set) var status: Status = .stopped
-    @Published private(set) var log: String = ""
-    @Published private(set) var restartCount: Int = 0
-    @Published private(set) var environmentStatus: GatewayEnvironmentStatus = .checking
-    @Published private(set) var existingGatewayDetails: String?
+    private(set) var status: Status = .stopped
+    private(set) var log: String = ""
+    private(set) var restartCount: Int = 0
+    private(set) var environmentStatus: GatewayEnvironmentStatus = .checking
+    private(set) var existingGatewayDetails: String?
 
     private var execution: Execution?
     private var lastPid: Int32?
diff --git a/apps/macos/Sources/Clawdis/GeneralSettings.swift b/apps/macos/Sources/Clawdis/GeneralSettings.swift
index 7ff42a8ea..e1e432b5b 100644
--- a/apps/macos/Sources/Clawdis/GeneralSettings.swift
+++ b/apps/macos/Sources/Clawdis/GeneralSettings.swift
@@ -1,13 +1,14 @@
 import AppKit
+import Observation
 import SwiftUI
 
 struct GeneralSettings: View {
-    @ObservedObject var state: AppState
+    @Bindable var state: AppState
     @AppStorage(cameraEnabledKey) private var cameraEnabled: Bool = true
-    @ObservedObject private var healthStore = HealthStore.shared
-    @ObservedObject private var gatewayManager = GatewayProcessManager.shared
+    private let healthStore = HealthStore.shared
+    private let gatewayManager = GatewayProcessManager.shared
     // swiftlint:disable:next inclusive_language
-    @StateObject private var masterDiscovery = MasterDiscoveryModel()
+    @State private var masterDiscovery = MasterDiscoveryModel()
     @State private var isInstallingCLI = false
     @State private var cliStatus: String?
     @State private var cliInstalled = false
diff --git a/apps/macos/Sources/Clawdis/HealthStore.swift b/apps/macos/Sources/Clawdis/HealthStore.swift
index bced307fa..262291824 100644
--- a/apps/macos/Sources/Clawdis/HealthStore.swift
+++ b/apps/macos/Sources/Clawdis/HealthStore.swift
@@ -1,5 +1,6 @@
 import Foundation
 import Network
+import Observation
 import OSLog
 import SwiftUI
 
@@ -53,15 +54,16 @@ enum HealthState: Equatable {
 }
 
 @MainActor
-final class HealthStore: ObservableObject {
+@Observable
+final class HealthStore {
     static let shared = HealthStore()
 
     private static let logger = Logger(subsystem: "com.steipete.clawdis", category: "health")
 
-    @Published private(set) var snapshot: HealthSnapshot?
-    @Published private(set) var lastSuccess: Date?
-    @Published private(set) var lastError: String?
-    @Published private(set) var isRefreshing = false
+    private(set) var snapshot: HealthSnapshot?
+    private(set) var lastSuccess: Date?
+    private(set) var lastError: String?
+    private(set) var isRefreshing = false
 
     private var loopTask: Task<Void, Never>?
     private let refreshInterval: TimeInterval = 60
diff --git a/apps/macos/Sources/Clawdis/HeartbeatStore.swift b/apps/macos/Sources/Clawdis/HeartbeatStore.swift
index bc3608ae3..6bd7bb525 100644
--- a/apps/macos/Sources/Clawdis/HeartbeatStore.swift
+++ b/apps/macos/Sources/Clawdis/HeartbeatStore.swift
@@ -1,11 +1,13 @@
 import Foundation
+import Observation
 import SwiftUI
 
 @MainActor
-final class HeartbeatStore: ObservableObject {
+@Observable
+final class HeartbeatStore {
     static let shared = HeartbeatStore()
 
-    @Published private(set) var lastEvent: ControlHeartbeatEvent?
+    private(set) var lastEvent: ControlHeartbeatEvent?
 
     private var observer: NSObjectProtocol?
 
diff --git a/apps/macos/Sources/Clawdis/InstancesSettings.swift b/apps/macos/Sources/Clawdis/InstancesSettings.swift
index bf4d94cfc..fb656e225 100644
--- a/apps/macos/Sources/Clawdis/InstancesSettings.swift
+++ b/apps/macos/Sources/Clawdis/InstancesSettings.swift
@@ -1,7 +1,7 @@
 import SwiftUI
 
 struct InstancesSettings: View {
-    @ObservedObject var store: InstancesStore
+    var store: InstancesStore
 
     init(store: InstancesStore = .shared) {
         self.store = store
diff --git a/apps/macos/Sources/Clawdis/InstancesStore.swift b/apps/macos/Sources/Clawdis/InstancesStore.swift
index 7dad9d3b5..e48f326fc 100644
--- a/apps/macos/Sources/Clawdis/InstancesStore.swift
+++ b/apps/macos/Sources/Clawdis/InstancesStore.swift
@@ -1,6 +1,7 @@
 import ClawdisProtocol
 import Cocoa
 import Foundation
+import Observation
 import OSLog
 
 struct InstanceInfo: Identifiable, Codable {
@@ -27,14 +28,15 @@ struct InstanceInfo: Identifiable, Codable {
 }
 
 @MainActor
-final class InstancesStore: ObservableObject {
+@Observable
+final class InstancesStore {
     static let shared = InstancesStore()
     let isPreview: Bool
 
-    @Published var instances: [InstanceInfo] = []
-    @Published var lastError: String?
-    @Published var statusMessage: String?
-    @Published var isLoading = false
+    var instances: [InstanceInfo] = []
+    var lastError: String?
+    var statusMessage: String?
+    var isLoading = false
 
     private let logger = Logger(subsystem: "com.steipete.clawdis", category: "instances")
     private var task: Task<Void, Never>?
diff --git a/apps/macos/Sources/Clawdis/MasterDiscoveryMenu.swift b/apps/macos/Sources/Clawdis/MasterDiscoveryMenu.swift
index 6957e6dae..1470496b0 100644
--- a/apps/macos/Sources/Clawdis/MasterDiscoveryMenu.swift
+++ b/apps/macos/Sources/Clawdis/MasterDiscoveryMenu.swift
@@ -3,7 +3,7 @@ import SwiftUI
 // “master” is part of the discovery protocol naming; keep UI components consistent.
 // swiftlint:disable:next inclusive_language
 struct MasterDiscoveryInlineList: View {
-    @ObservedObject var discovery: MasterDiscoveryModel
+    var discovery: MasterDiscoveryModel
     var currentTarget: String?
     var onSelect: (MasterDiscoveryModel.DiscoveredMaster) -> Void
     @State private var hoveredMasterID: MasterDiscoveryModel.DiscoveredMaster.ID?
@@ -109,7 +109,7 @@ struct MasterDiscoveryInlineList: View {
 
 // swiftlint:disable:next inclusive_language
 struct MasterDiscoveryMenu: View {
-    @ObservedObject var discovery: MasterDiscoveryModel
+    var discovery: MasterDiscoveryModel
     var onSelect: (MasterDiscoveryModel.DiscoveredMaster) -> Void
 
     var body: some View {
diff --git a/apps/macos/Sources/Clawdis/MasterDiscoveryModel.swift b/apps/macos/Sources/Clawdis/MasterDiscoveryModel.swift
index 561157f7e..3a547d63b 100644
--- a/apps/macos/Sources/Clawdis/MasterDiscoveryModel.swift
+++ b/apps/macos/Sources/Clawdis/MasterDiscoveryModel.swift
@@ -1,10 +1,12 @@
 import Foundation
 import Network
+import Observation
 
 // We use “master” as the on-the-wire service name; keep the model aligned with the protocol/docs.
 @MainActor
 // swiftlint:disable:next inclusive_language
-final class MasterDiscoveryModel: ObservableObject {
+@Observable
+final class MasterDiscoveryModel {
     // swiftlint:disable:next inclusive_language
     struct DiscoveredMaster: Identifiable, Equatable {
         var id: String { self.debugID }
@@ -16,8 +18,8 @@ final class MasterDiscoveryModel: ObservableObject {
     }
 
     // swiftlint:disable:next inclusive_language
-    @Published var masters: [DiscoveredMaster] = []
-    @Published var statusText: String = "Idle"
+    var masters: [DiscoveredMaster] = []
+    var statusText: String = "Idle"
 
     private var browser: NWBrowser?
 
diff --git a/apps/macos/Sources/Clawdis/MenuBar.swift b/apps/macos/Sources/Clawdis/MenuBar.swift
index fc79535dc..f98a7ad79 100644
--- a/apps/macos/Sources/Clawdis/MenuBar.swift
+++ b/apps/macos/Sources/Clawdis/MenuBar.swift
@@ -9,9 +9,9 @@ import SwiftUI
 @main
 struct ClawdisApp: App {
     @NSApplicationDelegateAdaptor(AppDelegate.self) private var delegate
-    @StateObject private var state: AppState
-    @StateObject private var gatewayManager = GatewayProcessManager.shared
-    @StateObject private var activityStore = WorkActivityStore.shared
+    @State private var state: AppState
+    private let gatewayManager = GatewayProcessManager.shared
+    private let activityStore = WorkActivityStore.shared
     @State private var statusItem: NSStatusItem?
     @State private var isMenuPresented = false
     @State private var isPanelVisible = false
@@ -23,7 +23,7 @@ struct ClawdisApp: App {
     }
 
     init() {
-        _state = StateObject(wrappedValue: AppStateStore.shared)
+        _state = State(initialValue: AppStateStore.shared)
     }
 
     var body: some Scene {
diff --git a/apps/macos/Sources/Clawdis/MenuContentView.swift b/apps/macos/Sources/Clawdis/MenuContentView.swift
index e693c858f..556c2b693 100644
--- a/apps/macos/Sources/Clawdis/MenuContentView.swift
+++ b/apps/macos/Sources/Clawdis/MenuContentView.swift
@@ -1,17 +1,18 @@
 import AppKit
 import AVFoundation
 import Foundation
+import Observation
 import SwiftUI
 
 /// Menu contents for the Clawdis menu bar extra.
 struct MenuContent: View {
-    @ObservedObject var state: AppState
+    @Bindable var state: AppState
     let updater: UpdaterProviding?
-    @ObservedObject private var gatewayManager = GatewayProcessManager.shared
-    @ObservedObject private var healthStore = HealthStore.shared
-    @ObservedObject private var heartbeatStore = HeartbeatStore.shared
-    @ObservedObject private var controlChannel = ControlChannel.shared
-    @ObservedObject private var activityStore = WorkActivityStore.shared
+    private let gatewayManager = GatewayProcessManager.shared
+    private let healthStore = HealthStore.shared
+    private let heartbeatStore = HeartbeatStore.shared
+    private let controlChannel = ControlChannel.shared
+    private let activityStore = WorkActivityStore.shared
     @Environment(\.openSettings) private var openSettings
     @State private var availableMics: [AudioInputDevice] = []
     @State private var loadingMics = false
diff --git a/apps/macos/Sources/Clawdis/NotifyOverlay.swift b/apps/macos/Sources/Clawdis/NotifyOverlay.swift
index d95613269..1191c7e22 100644
--- a/apps/macos/Sources/Clawdis/NotifyOverlay.swift
+++ b/apps/macos/Sources/Clawdis/NotifyOverlay.swift
@@ -1,13 +1,15 @@
 import AppKit
+import Observation
 import QuartzCore
 import SwiftUI
 
 /// Lightweight, borderless panel for in-app "toast" notifications (bypasses macOS Notification Center).
 @MainActor
-final class NotifyOverlayController: ObservableObject {
+@Observable
+final class NotifyOverlayController {
     static let shared = NotifyOverlayController()
 
-    @Published private(set) var model = Model()
+    private(set) var model = Model()
     var isVisible: Bool { self.model.isVisible }
 
     struct Model {
@@ -159,7 +161,7 @@ final class NotifyOverlayController: ObservableObject {
 }
 
 private struct NotifyOverlayView: View {
-    @ObservedObject var controller: NotifyOverlayController
+    var controller: NotifyOverlayController
 
     var body: some View {
         VStack(alignment: .leading, spacing: 6) {
diff --git a/apps/macos/Sources/Clawdis/Onboarding.swift b/apps/macos/Sources/Clawdis/Onboarding.swift
index 16f61ea41..c0a0b7b5f 100644
--- a/apps/macos/Sources/Clawdis/Onboarding.swift
+++ b/apps/macos/Sources/Clawdis/Onboarding.swift
@@ -1,5 +1,6 @@
 import AppKit
 import ClawdisIPC
+import Observation
 import SwiftUI
 
 enum UIStrings {
@@ -68,9 +69,9 @@ struct OnboardingView: View {
     @State private var gatewayInstalling = false
     @State private var gatewayInstallMessage: String?
     // swiftlint:disable:next inclusive_language
-    @StateObject private var masterDiscovery: MasterDiscoveryModel
-    @ObservedObject private var state: AppState
-    @ObservedObject private var permissionMonitor: PermissionMonitor
+    @State private var masterDiscovery: MasterDiscoveryModel
+    @Bindable private var state: AppState
+    private var permissionMonitor: PermissionMonitor
 
     private let pageWidth: CGFloat = 680
     private let contentHeight: CGFloat = 520
@@ -99,9 +100,9 @@ struct OnboardingView: View {
         permissionMonitor: PermissionMonitor = .shared,
         discoveryModel: MasterDiscoveryModel = MasterDiscoveryModel())
     {
-        self._state = ObservedObject(wrappedValue: state)
-        self._permissionMonitor = ObservedObject(wrappedValue: permissionMonitor)
-        self._masterDiscovery = StateObject(wrappedValue: discoveryModel)
+        self.state = state
+        self.permissionMonitor = permissionMonitor
+        self._masterDiscovery = State(initialValue: discoveryModel)
     }
 
     var body: some View {
diff --git a/apps/macos/Sources/Clawdis/PermissionManager.swift b/apps/macos/Sources/Clawdis/PermissionManager.swift
index 023f10bd4..9d8269df5 100644
--- a/apps/macos/Sources/Clawdis/PermissionManager.swift
+++ b/apps/macos/Sources/Clawdis/PermissionManager.swift
@@ -4,6 +4,7 @@ import AVFoundation
 import ClawdisIPC
 import CoreGraphics
 import Foundation
+import Observation
 import OSLog
 import Speech
 import UserNotifications
@@ -236,10 +237,11 @@ enum AppleScriptPermission {
 }
 
 @MainActor
-final class PermissionMonitor: ObservableObject {
+@Observable
+final class PermissionMonitor {
     static let shared = PermissionMonitor()
 
-    @Published private(set) var status: [Capability: Bool] = [:]
+    private(set) var status: [Capability: Bool] = [:]
 
     private var monitorTimer: Timer?
     private var isChecking = false
diff --git a/apps/macos/Sources/Clawdis/SessionsSettings.swift b/apps/macos/Sources/Clawdis/SessionsSettings.swift
index 671dd1690..cc9b4fcb2 100644
--- a/apps/macos/Sources/Clawdis/SessionsSettings.swift
+++ b/apps/macos/Sources/Clawdis/SessionsSettings.swift
@@ -4,7 +4,7 @@ import SwiftUI
 @MainActor
 struct SessionsSettings: View {
     private let isPreview: Bool
-    @ObservedObject private var state = AppStateStore.shared
+    private let state = AppStateStore.shared
     @State private var rows: [SessionRow]
     @State private var storePath: String = SessionLoader.defaultStorePath
     @State private var lastLoaded: Date?
diff --git a/apps/macos/Sources/Clawdis/SettingsRootView.swift b/apps/macos/Sources/Clawdis/SettingsRootView.swift
index 11bd831d0..2ce2d44b9 100644
--- a/apps/macos/Sources/Clawdis/SettingsRootView.swift
+++ b/apps/macos/Sources/Clawdis/SettingsRootView.swift
@@ -1,8 +1,9 @@
+import Observation
 import SwiftUI
 
 struct SettingsRootView: View {
-    @ObservedObject var state: AppState
-    @ObservedObject private var permissionMonitor = PermissionMonitor.shared
+    @Bindable var state: AppState
+    private let permissionMonitor = PermissionMonitor.shared
     @State private var monitoringPermissions = false
     @State private var selectedTab: SettingsTab = .general
     let updater: UpdaterProviding?
diff --git a/apps/macos/Sources/Clawdis/VoiceSessionCoordinator.swift b/apps/macos/Sources/Clawdis/VoiceSessionCoordinator.swift
index 0bf00713c..070a066d4 100644
--- a/apps/macos/Sources/Clawdis/VoiceSessionCoordinator.swift
+++ b/apps/macos/Sources/Clawdis/VoiceSessionCoordinator.swift
@@ -1,9 +1,11 @@
 import AppKit
 import Foundation
+import Observation
 import OSLog
 
 @MainActor
-final class VoiceSessionCoordinator: ObservableObject {
+@Observable
+final class VoiceSessionCoordinator {
     static let shared = VoiceSessionCoordinator()
 
     enum Source: String { case wakeWord, pushToTalk }
diff --git a/apps/macos/Sources/Clawdis/VoiceWakeOverlay.swift b/apps/macos/Sources/Clawdis/VoiceWakeOverlay.swift
index dc4515a75..5125ba65d 100644
--- a/apps/macos/Sources/Clawdis/VoiceWakeOverlay.swift
+++ b/apps/macos/Sources/Clawdis/VoiceWakeOverlay.swift
@@ -1,11 +1,13 @@
 import AppKit
+import Observation
 import OSLog
 import QuartzCore
 import SwiftUI
 
 /// Lightweight, borderless panel that shows the current voice wake transcript near the menu bar.
 @MainActor
-final class VoiceWakeOverlayController: ObservableObject {
+@Observable
+final class VoiceWakeOverlayController {
     static let shared = VoiceWakeOverlayController()
 
     private let logger = Logger(subsystem: "com.steipete.clawdis", category: "voicewake.overlay")
@@ -17,7 +19,7 @@ final class VoiceWakeOverlayController: ObservableObject {
 
     enum Source: String { case wakeWord, pushToTalk }
 
-    @Published private(set) var model = Model()
+    private(set) var model = Model()
     var isVisible: Bool { self.model.isVisible }
 
     struct Model {
@@ -465,7 +467,7 @@ final class VoiceWakeOverlayController: ObservableObject {
 }
 
 struct VoiceWakeOverlayView: View {
-    @ObservedObject var controller: VoiceWakeOverlayController
+    var controller: VoiceWakeOverlayController
     @FocusState private var textFocused: Bool
     @State private var isHovering: Bool = false
     @State private var closeHovering: Bool = false
diff --git a/apps/macos/Sources/Clawdis/VoiceWakeSettings.swift b/apps/macos/Sources/Clawdis/VoiceWakeSettings.swift
index 13bbebb10..3c78d77ce 100644
--- a/apps/macos/Sources/Clawdis/VoiceWakeSettings.swift
+++ b/apps/macos/Sources/Clawdis/VoiceWakeSettings.swift
@@ -1,11 +1,12 @@
 import AppKit
 import AVFoundation
+import Observation
 import Speech
 import SwiftUI
 import UniformTypeIdentifiers
 
 struct VoiceWakeSettings: View {
-    @ObservedObject var state: AppState
+    @Bindable var state: AppState
     @State private var testState: VoiceWakeTestState = .idle
     @State private var tester = VoiceWakeTester()
     @State private var isTesting = false
diff --git a/apps/macos/Sources/Clawdis/WorkActivityStore.swift b/apps/macos/Sources/Clawdis/WorkActivityStore.swift
index d72443e7f..84913f16f 100644
--- a/apps/macos/Sources/Clawdis/WorkActivityStore.swift
+++ b/apps/macos/Sources/Clawdis/WorkActivityStore.swift
@@ -1,8 +1,10 @@
 import Foundation
+import Observation
 import SwiftUI
 
 @MainActor
-final class WorkActivityStore: ObservableObject {
+@Observable
+final class WorkActivityStore {
     static let shared = WorkActivityStore()
 
     struct Activity: Equatable {
@@ -14,8 +16,8 @@ final class WorkActivityStore: ObservableObject {
         var lastUpdate: Date
     }
 
-    @Published private(set) var current: Activity?
-    @Published private(set) var iconState: IconState = .idle
+    private(set) var current: Activity?
+    private(set) var iconState: IconState = .idle
 
     private var active: [String: Activity] = [:]
     private var currentSessionKey: String?
diff --git a/apps/shared/ClawdisKit/Sources/ClawdisChatUI/ChatComposer.swift b/apps/shared/ClawdisKit/Sources/ClawdisChatUI/ChatComposer.swift
index a3dfc8cdf..14156ce22 100644
--- a/apps/shared/ClawdisKit/Sources/ClawdisChatUI/ChatComposer.swift
+++ b/apps/shared/ClawdisKit/Sources/ClawdisChatUI/ChatComposer.swift
@@ -1,4 +1,5 @@
 import Foundation
+import Observation
 import SwiftUI
 
 #if !os(macOS)
@@ -8,7 +9,7 @@ import UniformTypeIdentifiers
 
 @MainActor
 struct ClawdisChatComposer: View {
-    @ObservedObject var viewModel: ClawdisChatViewModel
+    @Bindable var viewModel: ClawdisChatViewModel
 
     #if !os(macOS)
     @State private var pickerItems: [PhotosPickerItem] = []
diff --git a/apps/shared/ClawdisKit/Sources/ClawdisChatUI/ChatView.swift b/apps/shared/ClawdisKit/Sources/ClawdisChatUI/ChatView.swift
index adfd93382..e0b547cdb 100644
--- a/apps/shared/ClawdisKit/Sources/ClawdisChatUI/ChatView.swift
+++ b/apps/shared/ClawdisKit/Sources/ClawdisChatUI/ChatView.swift
@@ -2,11 +2,11 @@ import SwiftUI
 
 @MainActor
 public struct ClawdisChatView: View {
-    @StateObject private var viewModel: ClawdisChatViewModel
+    @State private var viewModel: ClawdisChatViewModel
     @State private var scrollerBottomID = UUID()
 
     public init(viewModel: ClawdisChatViewModel) {
-        self._viewModel = StateObject(wrappedValue: viewModel)
+        self._viewModel = State(initialValue: viewModel)
     }
 
     public var body: some View {
diff --git a/apps/shared/ClawdisKit/Sources/ClawdisChatUI/ChatViewModel.swift b/apps/shared/ClawdisKit/Sources/ClawdisChatUI/ChatViewModel.swift
index 98a34d056..b536b5223 100644
--- a/apps/shared/ClawdisKit/Sources/ClawdisChatUI/ChatViewModel.swift
+++ b/apps/shared/ClawdisKit/Sources/ClawdisChatUI/ChatViewModel.swift
@@ -1,5 +1,6 @@
 import ClawdisKit
 import Foundation
+import Observation
 import OSLog
 import UniformTypeIdentifiers
 
@@ -12,21 +13,23 @@ import UIKit
 private let chatUILogger = Logger(subsystem: "com.steipete.clawdis", category: "ClawdisChatUI")
 
 @MainActor
-public final class ClawdisChatViewModel: ObservableObject {
-    @Published public private(set) var messages: [ClawdisChatMessage] = []
-    @Published public var input: String = ""
-    @Published public var thinkingLevel: String = "off"
-    @Published public private(set) var isLoading = false
-    @Published public private(set) var isSending = false
-    @Published public var errorText: String?
-    @Published public var attachments: [ClawdisPendingAttachment] = []
-    @Published public private(set) var healthOK: Bool = true
-    @Published public private(set) var pendingRunCount: Int = 0
+@Observable
+public final class ClawdisChatViewModel {
+    public private(set) var messages: [ClawdisChatMessage] = []
+    public var input: String = ""
+    public var thinkingLevel: String = "off"
+    public private(set) var isLoading = false
+    public private(set) var isSending = false
+    public var errorText: String?
+    public var attachments: [ClawdisPendingAttachment] = []
+    public private(set) var healthOK: Bool = true
+    public private(set) var pendingRunCount: Int = 0
 
     public let sessionKey: String
     private let transport: any ClawdisChatTransport
 
-    private var eventTask: Task<Void, Never>?
+    @ObservationIgnored
+    private nonisolated(unsafe) var eventTask: Task<Void, Never>?
     private var pendingRuns = Set<String>() {
         didSet { self.pendingRunCount = self.pendingRuns.count }
     }