diff --git a/apps/web/src/@types/global.d.ts b/apps/web/src/@types/global.d.ts
index 4a5d5e89cf..b65d95d3b5 100644
--- a/apps/web/src/@types/global.d.ts
+++ b/apps/web/src/@types/global.d.ts
@@ -19,7 +19,6 @@ import { type PlatformPeg } from "../PlatformPeg";
 import { type IntegrationManagers } from "../integrations/IntegrationManagers";
 import { type ModalManager } from "../Modal";
 import type SettingsStore from "../settings/SettingsStore";
-import { type Notifier } from "../Notifier";
 import type RightPanelStore from "../stores/right-panel/RightPanelStore";
 import type WidgetStore from "../stores/WidgetStore";
 import type LegacyCallHandler from "../LegacyCallHandler";
@@ -97,7 +96,6 @@ declare global {
         mxIntegrationManagers: typeof IntegrationManagers;
         singletonModalManager: ModalManager;
         mxSettingsStore: SettingsStore;
-        mxNotifier: typeof Notifier;
         mxRightPanelStore: RightPanelStore;
         mxWidgetStore: WidgetStore;
         mxWidgetLayoutStore: WidgetLayoutStore;
diff --git a/apps/web/src/Lifecycle.ts b/apps/web/src/Lifecycle.ts
index 15e19c8b64..9bd78c48fb 100644
--- a/apps/web/src/Lifecycle.ts
+++ b/apps/web/src/Lifecycle.ts
@@ -24,7 +24,6 @@ import { MatrixClientPeg, type MatrixClientPegAssignOpts } from "./MatrixClientP
 import { ModuleRunner } from "./modules/ModuleRunner";
 import EventIndexPeg from "./indexing/EventIndexPeg";
 import { createMatrixClient, createClientWithCreds, type IMatrixClientCreds } from "./utils/createMatrixClient";
-import Notifier from "./Notifier";
 import UserActivity from "./UserActivity";
 import Presence from "./Presence";
 import dis from "./dispatcher/dispatcher";
@@ -1098,7 +1097,7 @@ async function startMatrixClient(
     ToastStore.sharedInstance().reset();
 
     DialogOpener.instance.prepare(client);
-    Notifier.start();
+    SDKContextClass.instance.notifier.start();
     UserActivity.sharedInstance().start();
     DMRoomMap.makeShared(client).start();
     IntegrationManagers.sharedInstance().startWatching();
@@ -1229,7 +1228,7 @@ export async function clearStorage(opts?: { deleteEverything?: boolean }): Promi
  * on MatrixClientPeg after stopping.
  */
 export function stopMatrixClient(unsetClient = true): void {
-    Notifier.stop();
+    SDKContextClass.instance.notifier.stop();
     LegacyCallHandler.instance.stop();
     UserActivity.sharedInstance().stop();
     SDKContextClass.instance.typingStore.reset();
diff --git a/apps/web/src/Notifier.ts b/apps/web/src/Notifier.ts
index a38913de81..411092bbe3 100644
--- a/apps/web/src/Notifier.ts
+++ b/apps/web/src/Notifier.ts
@@ -27,13 +27,10 @@ import { logger } from "matrix-js-sdk/src/logger";
 import { type PermissionChanged as PermissionChangedEvent } from "@matrix-org/analytics-events/types/typescript/PermissionChanged";
 import { type SessionMembershipData, type IRTCNotificationContent } from "matrix-js-sdk/src/matrixrtc";
 
-import { MatrixClientPeg } from "./MatrixClientPeg";
-import { PosthogAnalytics } from "./PosthogAnalytics";
 import SdkConfig from "./SdkConfig";
 import PlatformPeg from "./PlatformPeg";
 import * as TextForEvent from "./TextForEvent";
 import * as Avatar from "./Avatar";
-import dis from "./dispatcher/dispatcher";
 import { _t } from "./languageHandler";
 import Modal from "./Modal";
 import SettingsStore from "./settings/SettingsStore";
@@ -43,12 +40,13 @@ import { isPushNotifyDisabled } from "./settings/controllers/NotificationControl
 import UserActivity from "./UserActivity";
 import { mediaFromMxc } from "./customisations/Media";
 import ErrorDialog from "./components/views/dialogs/ErrorDialog";
-import { SDKContextClass } from "./contexts/SDKContextClass";
+import { type SDKContextClass } from "./contexts/SDKContextClass.ts";
 import { localNotificationsAreSilenced, createLocalNotificationSettingsIfNeeded } from "./utils/notifications";
 import { getIncomingCallToastKey, getNotificationEventSendTs, IncomingCallToast } from "./toasts/IncomingCallToast";
 import ToastStore from "./stores/ToastStore";
 import { stripPlainReply } from "./utils/Reply";
 import { BackgroundAudio } from "./audio/BackgroundAudio";
+import { type MatrixDispatcher } from "./dispatcher/dispatcher.ts";
 
 /*
  * Dispatches:
@@ -83,27 +81,6 @@ const MAX_PENDING_ENCRYPTED = 20;
  */
 export const NOTIFICATION_SOUND_THROTTLE_MS = 1000;
 
-/*
-Override both the content body and the TextForEvent handler for specific msgtypes, in notifications.
-This is useful when the content body contains fallback text that would explain that the client can't handle a particular
-type of tile.
-*/
-const msgTypeHandlers: Record<string, (event: MatrixEvent) => string | null> = {
-    [MsgType.KeyVerificationRequest]: (event: MatrixEvent) => {
-        const name = event.sender?.name;
-        return _t("notifier|m.key.verification.request", { name });
-    },
-    [M_LOCATION.name]: (event: MatrixEvent) => {
-        return TextForEvent.textForLocationEvent(event)();
-    },
-    [M_LOCATION.altName]: (event: MatrixEvent) => {
-        return TextForEvent.textForLocationEvent(event)();
-    },
-    [MsgType.Audio]: (event: MatrixEvent): string | null => {
-        return TextForEvent.textForEvent(event, MatrixClientPeg.safeGet());
-    },
-};
-
 /**
  * Extracts plain text from a message body, replacing any spoilered content
  * with '[Spoiler]' to prevent spoilers in desktop notifications.
@@ -175,7 +152,7 @@ export type NotificationSound = {
     size?: number;
 };
 
-class NotifierClass extends TypedEventEmitter<keyof EmittedEvents, EmittedEvents> {
+export default class Notifier extends TypedEventEmitter<keyof EmittedEvents, EmittedEvents> {
     private notifsByRoom: Record<string, Notification[]> = {};
 
     // A list of event IDs that we've received but need to wait until
@@ -196,19 +173,50 @@ class NotifierClass extends TypedEventEmitter<keyof EmittedEvents, EmittedEvents
      */
     private readonly lastAudioNotificationMs = new Map<string, number>();
 
+    private msgTypeHandlers: Record<string, (event: MatrixEvent) => string | null>;
+
+    public constructor(
+        private readonly dispatcher: MatrixDispatcher,
+        private readonly sdkContext: SDKContextClass,
+    ) {
+        super();
+
+        /*
+        Override both the content body and the TextForEvent handler for specific msgtypes, in notifications.
+        This is useful when the content body contains fallback text that would explain that the client can't handle a particular
+        type of tile.
+        */
+        this.msgTypeHandlers = {
+            [MsgType.KeyVerificationRequest]: (event: MatrixEvent) => {
+                const name = event.sender?.name;
+                return _t("notifier|m.key.verification.request", { name });
+            },
+            [M_LOCATION.name]: (event: MatrixEvent) => {
+                return TextForEvent.textForLocationEvent(event)();
+            },
+            [M_LOCATION.altName]: (event: MatrixEvent) => {
+                return TextForEvent.textForLocationEvent(event)();
+            },
+            [MsgType.Audio]: (event: MatrixEvent): string | null => {
+                return TextForEvent.textForEvent(event, this.sdkContext.client!);
+            },
+        };
+    }
+
     public notificationMessageForEvent(ev: MatrixEvent): string | null {
+        if (!this.sdkContext.client) return null;
         const msgType = ev.getContent().msgtype;
-        if (msgType && msgTypeHandlers.hasOwnProperty(msgType)) {
-            return msgTypeHandlers[msgType](ev);
+        if (msgType && this.msgTypeHandlers.hasOwnProperty(msgType)) {
+            return this.msgTypeHandlers[msgType](ev);
         }
-        return TextForEvent.textForEvent(ev, MatrixClientPeg.safeGet());
+        return TextForEvent.textForEvent(ev, this.sdkContext.client);
     }
 
     // XXX: exported for tests
     public displayPopupNotification(ev: MatrixEvent, room: Room): void {
         const plaf = PlatformPeg.get();
-        const cli = MatrixClientPeg.safeGet();
-        if (!plaf) {
+        const cli = this.sdkContext.client;
+        if (!plaf || !cli) {
             return;
         }
         if (!plaf.supportsNotifications() || !plaf.maySendNotifications()) {
@@ -227,7 +235,7 @@ class NotifierClass extends TypedEventEmitter<keyof EmittedEvents, EmittedEvents
             title = room.name;
             // notificationMessageForEvent includes sender, but we already have the sender here
             const msgType = ev.getContent().msgtype;
-            if (ev.getContent().body && (!msgType || !msgTypeHandlers.hasOwnProperty(msgType))) {
+            if (ev.getContent().body && (!msgType || !this.msgTypeHandlers.hasOwnProperty(msgType))) {
                 msg = stripPlainReply(getNotificationBodyWithoutSpoilers(ev));
             }
         } else if (ev.getType() === "m.room.member") {
@@ -238,7 +246,7 @@ class NotifierClass extends TypedEventEmitter<keyof EmittedEvents, EmittedEvents
             title = ev.sender.name + " (" + room.name + ")";
             // notificationMessageForEvent includes sender, but we've just out sender in the title
             const msgType = ev.getContent().msgtype;
-            if (ev.getContent().body && (!msgType || !msgTypeHandlers.hasOwnProperty(msgType))) {
+            if (ev.getContent().body && (!msgType || !this.msgTypeHandlers.hasOwnProperty(msgType))) {
                 msg = stripPlainReply(getNotificationBodyWithoutSpoilers(ev));
             }
         }
@@ -300,8 +308,8 @@ class NotifierClass extends TypedEventEmitter<keyof EmittedEvents, EmittedEvents
 
     // XXX: Exported for tests
     public async playAudioNotification(ev: MatrixEvent, room: Room): Promise<void> {
-        const cli = MatrixClientPeg.safeGet();
-        if (localNotificationsAreSilenced(cli)) {
+        const cli = this.sdkContext.client;
+        if (!cli || localNotificationsAreSilenced(cli)) {
             return;
         }
 
@@ -331,22 +339,19 @@ class NotifierClass extends TypedEventEmitter<keyof EmittedEvents, EmittedEvents
     }
 
     public start(): void {
-        const cli = MatrixClientPeg.safeGet();
-        cli.on(RoomEvent.Timeline, this.onEvent);
-        cli.on(RoomEvent.Receipt, this.onRoomReceipt);
-        cli.on(MatrixEventEvent.Decrypted, this.onEventDecrypted);
-        cli.on(ClientEvent.Sync, this.onSyncStateChange);
+        this.sdkContext.client!.on(RoomEvent.Timeline, this.onEvent);
+        this.sdkContext.client!.on(RoomEvent.Receipt, this.onRoomReceipt);
+        this.sdkContext.client!.on(MatrixEventEvent.Decrypted, this.onEventDecrypted);
+        this.sdkContext.client!.on(ClientEvent.Sync, this.onSyncStateChange);
         this.toolbarHidden = false;
         this.isSyncing = false;
     }
 
     public stop(): void {
-        if (MatrixClientPeg.get()) {
-            MatrixClientPeg.get()!.removeListener(RoomEvent.Timeline, this.onEvent);
-            MatrixClientPeg.get()!.removeListener(RoomEvent.Receipt, this.onRoomReceipt);
-            MatrixClientPeg.get()!.removeListener(MatrixEventEvent.Decrypted, this.onEventDecrypted);
-            MatrixClientPeg.get()!.removeListener(ClientEvent.Sync, this.onSyncStateChange);
-        }
+        this.sdkContext.client?.removeListener(RoomEvent.Timeline, this.onEvent);
+        this.sdkContext.client?.removeListener(RoomEvent.Receipt, this.onRoomReceipt);
+        this.sdkContext.client?.removeListener(MatrixEventEvent.Decrypted, this.onEventDecrypted);
+        this.sdkContext.client?.removeListener(ClientEvent.Sync, this.onSyncStateChange);
         this.isSyncing = false;
     }
 
@@ -390,23 +395,23 @@ class NotifierClass extends TypedEventEmitter<keyof EmittedEvents, EmittedEvents
 
                 if (callback) callback();
 
-                PosthogAnalytics.instance.trackEvent<PermissionChangedEvent>({
+                this.sdkContext.posthogAnalytics.trackEvent<PermissionChangedEvent>({
                     eventName: "PermissionChanged",
                     permission: "Notification",
                     granted: true,
                 });
-                dis.dispatch({
+                this.dispatcher.dispatch({
                     action: "notifier_enabled",
                     value: true,
                 });
             });
         } else {
-            PosthogAnalytics.instance.trackEvent<PermissionChangedEvent>({
+            this.sdkContext.posthogAnalytics.trackEvent<PermissionChangedEvent>({
                 eventName: "PermissionChanged",
                 permission: "Notification",
                 granted: false,
             });
-            dis.dispatch({
+            this.dispatcher.dispatch({
                 action: "notifier_enabled",
                 value: false,
             });
@@ -450,7 +455,7 @@ class NotifierClass extends TypedEventEmitter<keyof EmittedEvents, EmittedEvents
     }
 
     public shouldShowPrompt(): boolean {
-        const client = MatrixClientPeg.get();
+        const client = this.sdkContext.client;
         if (!client) {
             return false;
         }
@@ -475,6 +480,7 @@ class NotifierClass extends TypedEventEmitter<keyof EmittedEvents, EmittedEvents
 
     // XXX: Exported for tests
     public onSyncStateChange = (state: SyncState, prevState: SyncState | null, data?: SyncStateData): void => {
+        if (!this.sdkContext.client) return;
         if (state === SyncState.Syncing) {
             this.isSyncing = true;
         } else if (state === SyncState.Stopped || state === SyncState.Error) {
@@ -483,7 +489,7 @@ class NotifierClass extends TypedEventEmitter<keyof EmittedEvents, EmittedEvents
 
         // wait for first non-cached sync to complete
         if (![SyncState.Stopped, SyncState.Error].includes(state) && !data?.fromCache) {
-            createLocalNotificationSettingsIfNeeded(MatrixClientPeg.safeGet());
+            createLocalNotificationSettingsIfNeeded(this.sdkContext.client);
         }
     };
 
@@ -494,13 +500,14 @@ class NotifierClass extends TypedEventEmitter<keyof EmittedEvents, EmittedEvents
         removed: boolean,
         data: IRoomTimelineData,
     ): void => {
+        if (!this.sdkContext.client) return;
         if (removed) return; // only notify for new events, not removed ones
         if (!data.liveEvent || !!toStartOfTimeline) return; // only notify for new things, not old.
         if (!this.isSyncing) return; // don't alert for any messages initially
-        if (ev.getSender() === MatrixClientPeg.safeGet().getUserId()) return;
+        if (ev.getSender() === this.sdkContext.client.getUserId()) return;
         if (data.timeline.getTimelineSet().threadListType !== null) return; // Ignore events on the thread list generated timelines
 
-        MatrixClientPeg.safeGet().decryptEventIfNeeded(ev);
+        this.sdkContext.client.decryptEventIfNeeded(ev);
 
         // If it's an encrypted event and the type is still 'm.room.encrypted',
         // it hasn't yet been decrypted, so wait until it is.
@@ -546,20 +553,21 @@ class NotifierClass extends TypedEventEmitter<keyof EmittedEvents, EmittedEvents
 
     // XXX: exported for tests
     public evaluateEvent(ev: MatrixEvent): void {
+        if (!this.sdkContext.client) return;
         const roomId = ev.getRoomId()!;
-        const room = MatrixClientPeg.safeGet().getRoom(roomId);
+        const room = this.sdkContext.client.getRoom(roomId);
         if (!room) {
             // e.g we are in the process of joining a room.
             // Seen in the Playwright lazy-loading test.
             return;
         }
 
-        const actions = MatrixClientPeg.safeGet().getPushActionsForEvent(ev);
+        const actions = this.sdkContext.client.getPushActionsForEvent(ev);
 
         if (actions?.notify) {
             this.performCustomEventHandling(ev);
 
-            const store = SDKContextClass.instance.roomViewStore;
+            const store = this.sdkContext.roomViewStore;
             const isViewingRoom = store.getRoomId() === room.roomId;
             const threadId: string | undefined = ev.getId() !== ev.threadRootId ? ev.threadRootId : undefined;
             const isViewingThread = store.getThreadId() === threadId;
@@ -670,8 +678,7 @@ class NotifierClass extends TypedEventEmitter<keyof EmittedEvents, EmittedEvents
      */
     private performCustomEventHandling(ev: MatrixEvent): void {
         const toaster = ToastStore.sharedInstance();
-        const cli = MatrixClientPeg.safeGet();
-        const room = cli.getRoom(ev.getRoomId());
+        const room = this.sdkContext.client?.getRoom(ev.getRoomId());
 
         if (room && EventType.RTCNotification === ev.getType()) {
             // We don't need to await this.
@@ -679,10 +686,3 @@ class NotifierClass extends TypedEventEmitter<keyof EmittedEvents, EmittedEvents
         }
     }
 }
-
-if (!window.mxNotifier) {
-    window.mxNotifier = new NotifierClass();
-}
-
-export default window.mxNotifier;
-export const Notifier: NotifierClass = window.mxNotifier;
diff --git a/apps/web/src/components/structures/MatrixChat.tsx b/apps/web/src/components/structures/MatrixChat.tsx
index 14db9e53ce..bb85565d45 100644
--- a/apps/web/src/components/structures/MatrixChat.tsx
+++ b/apps/web/src/components/structures/MatrixChat.tsx
@@ -37,7 +37,6 @@ import { MatrixClientPeg } from "../../MatrixClientPeg";
 import PlatformPeg from "../../PlatformPeg";
 import SdkConfig, { type ConfigOptions } from "../../SdkConfig";
 import dis from "../../dispatcher/dispatcher";
-import Notifier from "../../Notifier";
 import Modal from "../../Modal";
 import { showRoomInviteDialog, showStartChatInviteDialog } from "../../RoomInvite";
 import * as Rooms from "../../Rooms";
@@ -1638,8 +1637,8 @@ export default class MatrixChat extends React.PureComponent<IProps, IState> {
             this.firstSyncComplete = true;
             this.firstSyncPromise.resolve();
 
-            if (Notifier.shouldShowPrompt() && !MatrixClientPeg.userRegisteredWithinLastHours(24)) {
-                showNotificationsToast(false);
+            if (this.stores.notifier.shouldShowPrompt() && !MatrixClientPeg.userRegisteredWithinLastHours(24)) {
+                showNotificationsToast(this.stores.notifier, false);
             }
 
             dis.fire(Action.FocusSendMessageComposer);
diff --git a/apps/web/src/components/structures/RoomView.tsx b/apps/web/src/components/structures/RoomView.tsx
index aace83f8f7..1b9bd52408 100644
--- a/apps/web/src/components/structures/RoomView.tsx
+++ b/apps/web/src/components/structures/RoomView.tsx
@@ -88,7 +88,6 @@ import { containsEmoji } from "../../effects/utils";
 import { CHAT_EFFECTS } from "../../effects";
 import { CallView } from "../views/voip/CallView";
 import { UPDATE_EVENT } from "../../stores/AsyncStore";
-import Notifier from "../../Notifier";
 import { showToast as showNotificationsToast } from "../../toasts/DesktopNotificationsToast";
 import { WidgetLayoutStore } from "../../stores/widgets/WidgetLayoutStore";
 import { getKeyBindingsManager } from "../../KeyBindingsManager";
@@ -1689,8 +1688,8 @@ export class RoomView extends React.Component<IRoomProps, IRoomState> {
         if (!this.state.room) return;
         const memberCount = this.state.room.getJoinedMemberCount() + this.state.room.getInvitedMemberCount();
         // if they are not alone prompt the user about notifications so they don't miss replies
-        if (memberCount > 1 && Notifier.shouldShowPrompt()) {
-            showNotificationsToast(true);
+        if (memberCount > 1 && this.context.notifier.shouldShowPrompt()) {
+            showNotificationsToast(this.context.notifier, true);
         }
     }
 
diff --git a/apps/web/src/components/views/settings/tabs/room/NotificationSettingsTab.tsx b/apps/web/src/components/views/settings/tabs/room/NotificationSettingsTab.tsx
index a66c75d65c..b510597766 100644
--- a/apps/web/src/components/views/settings/tabs/room/NotificationSettingsTab.tsx
+++ b/apps/web/src/components/views/settings/tabs/room/NotificationSettingsTab.tsx
@@ -11,7 +11,6 @@ import { logger } from "matrix-js-sdk/src/logger";
 
 import { _t } from "../../../../../languageHandler";
 import AccessibleButton, { type ButtonEvent } from "../../../elements/AccessibleButton";
-import Notifier from "../../../../../Notifier";
 import SettingsStore from "../../../../../settings/SettingsStore";
 import { SettingLevel } from "../../../../../settings/SettingLevel";
 import { type RoomEchoChamber } from "../../../../../stores/local-echo/RoomEchoChamber";
@@ -26,6 +25,7 @@ import { chromeFileInputFix } from "../../../../../utils/BrowserWorkarounds";
 import SettingsTab from "../SettingsTab";
 import { SettingsSection } from "../../shared/SettingsSection";
 import { SettingsSubsection } from "../../shared/SettingsSubsection";
+import { SDKContextClass } from "../../../../../contexts/SDKContextClass.ts";
 
 interface IProps {
     roomId: string;
@@ -50,7 +50,7 @@ export default class NotificationsSettingsTab extends React.Component<IProps, IS
         this.roomProps = EchoChamber.forRoom(context.getRoom(this.props.roomId)!);
 
         let currentSound = "default";
-        const soundData = Notifier.getSoundForRoom(this.props.roomId);
+        const soundData = SDKContextClass.instance.notifier.getSoundForRoom(this.props.roomId);
         if (soundData) {
             currentSound = soundData.name || soundData.url;
         }
diff --git a/apps/web/src/contexts/SDKContextClass.ts b/apps/web/src/contexts/SDKContextClass.ts
index a6618362ab..26d8e82909 100644
--- a/apps/web/src/contexts/SDKContextClass.ts
+++ b/apps/web/src/contexts/SDKContextClass.ts
@@ -29,6 +29,8 @@ import { MultiRoomViewStore } from "../stores/MultiRoomViewStore";
 import { type ActionPayload, isAction } from "../dispatcher/payloads.ts";
 import { Action } from "../dispatcher/actions.ts";
 import { type OnLoggedInPayload } from "../dispatcher/payloads/OnLoggedInPayload.ts";
+import Notifier from "../Notifier.ts";
+import SettingController from "../settings/controllers/SettingController.ts";
 
 /**
  * A class which (mostly) lazily initialises stores as and when they are requested, ensuring they remain
@@ -71,8 +73,11 @@ export class SDKContextClass {
     protected _OidcClientStore?: OidcClientStore;
     protected _ResizeNotifier?: ResizeNotifier;
     protected _MultiRoomViewStore?: MultiRoomViewStore;
+    protected _Notifier?: Notifier;
 
     public constructor() {
+        SettingController.sdkContext = this;
+
         defaultDispatcher.register(this.onDispatch);
     }
 
@@ -205,6 +210,13 @@ export class SDKContextClass {
         return this._MultiRoomViewStore;
     }
 
+    public get notifier(): Notifier {
+        if (!this._Notifier) {
+            this._Notifier = new Notifier(defaultDispatcher, this);
+        }
+        return this._Notifier;
+    }
+
     public onLoggedOut(): void {
         this._UserProfilesStore = undefined;
         this._OidcClientStore = undefined;
diff --git a/apps/web/src/settings/controllers/NotificationControllers.ts b/apps/web/src/settings/controllers/NotificationControllers.ts
index 08c5cc3c2c..20a9245a25 100644
--- a/apps/web/src/settings/controllers/NotificationControllers.ts
+++ b/apps/web/src/settings/controllers/NotificationControllers.ts
@@ -29,14 +29,6 @@ export function isPushNotifyDisabled(): boolean {
     return masterRule.enabled && !masterRule.actions.includes(PushRuleActionName.Notify);
 }
 
-function getNotifier(): any {
-    // TODO: [TS] Formal type that doesn't cause a cyclical reference.
-    // eslint-disable-next-line @typescript-eslint/no-require-imports
-    let Notifier = require("../../Notifier"); // avoids cyclical references
-    if (Notifier.default) Notifier = Notifier.default; // correct for webpack require() weirdness
-    return Notifier;
-}
-
 export class NotificationsEnabledController extends SettingController {
     public getValueOverride(
         level: SettingLevel,
@@ -44,7 +36,7 @@ export class NotificationsEnabledController extends SettingController {
         calculatedValue: any,
         calculatedAtLevel: SettingLevel | null,
     ): any {
-        if (!getNotifier().isPossible()) return false;
+        if (!this.sdkContext.notifier.isPossible()) return false;
 
         if (calculatedValue === null || calculatedAtLevel === "default") {
             return !isPushNotifyDisabled();
@@ -54,15 +46,15 @@ export class NotificationsEnabledController extends SettingController {
     }
 
     public onChange(level: SettingLevel, roomId: string, newValue: any): void {
-        if (getNotifier().supportsDesktopNotifications()) {
-            getNotifier().setEnabled(newValue);
+        if (this.sdkContext.notifier.supportsDesktopNotifications()) {
+            this.sdkContext.notifier.setEnabled(newValue);
         }
     }
 }
 
 export class NotificationBodyEnabledController extends SettingController {
     public getValueOverride(level: SettingLevel, roomId: string, calculatedValue: any): any {
-        if (!getNotifier().isPossible()) return false;
+        if (!this.sdkContext.notifier.isPossible()) return false;
 
         if (calculatedValue === null) {
             return !isPushNotifyDisabled();
diff --git a/apps/web/src/settings/controllers/SettingController.ts b/apps/web/src/settings/controllers/SettingController.ts
index a1e2ff561b..b033e9377e 100644
--- a/apps/web/src/settings/controllers/SettingController.ts
+++ b/apps/web/src/settings/controllers/SettingController.ts
@@ -9,6 +9,7 @@ Please see LICENSE files in the repository root for full details.
 
 import { type SettingLevel } from "../SettingLevel";
 import type SettingsStore from "../SettingsStore";
+import { type SDKContextClass } from "../../contexts/SDKContextClass.ts";
 
 /**
  * Represents a controller for individual settings to alter the reading behaviour
@@ -19,6 +20,7 @@ import type SettingsStore from "../SettingsStore";
  * intended to handle environmental factors for specific settings.
  */
 export default abstract class SettingController {
+    public static sdkContext: SDKContextClass;
     public static settingsStore: typeof SettingsStore;
 
     /**
@@ -77,4 +79,12 @@ export default abstract class SettingController {
     protected get settingsStore(): typeof SettingsStore {
         return SettingController.settingsStore;
     }
+
+    /**
+     * Accessor to the SDKContext injected at runtime.
+     * Preferred to direct imports in order to avoid import cycles.
+     */
+    protected get sdkContext(): SDKContextClass {
+        return SettingController.sdkContext;
+    }
 }
diff --git a/apps/web/src/toasts/DesktopNotificationsToast.ts b/apps/web/src/toasts/DesktopNotificationsToast.ts
index 8d88d209fb..8842af83dc 100644
--- a/apps/web/src/toasts/DesktopNotificationsToast.ts
+++ b/apps/web/src/toasts/DesktopNotificationsToast.ts
@@ -7,7 +7,7 @@ Please see LICENSE files in the repository root for full details.
 */
 
 import { _t } from "../languageHandler";
-import Notifier from "../Notifier";
+import type Notifier from "../Notifier";
 import GenericToast from "../components/views/toasts/GenericToast";
 import ToastStore from "../stores/ToastStore";
 import { MatrixClientPeg } from "../MatrixClientPeg";
@@ -15,22 +15,22 @@ import { getLocalNotificationAccountDataEventType } from "../utils/notifications
 import SettingsStore from "../settings/SettingsStore";
 import { SettingLevel } from "../settings/SettingLevel";
 
-const onAccept = async (): Promise<void> => {
-    await SettingsStore.setValue("notificationsEnabled", null, SettingLevel.DEVICE, true);
-    const cli = MatrixClientPeg.safeGet();
-    const eventType = getLocalNotificationAccountDataEventType(cli.deviceId!);
-    cli.setAccountData(eventType, {
-        is_silenced: false,
-    });
-};
-
-const onReject = (): void => {
-    Notifier.setPromptHidden(true);
-};
-
 const TOAST_KEY = "desktopnotifications";
 
-export const showToast = (fromMessageSend: boolean): void => {
+export const showToast = (notifier: Notifier, fromMessageSend: boolean): void => {
+    const onAccept = async (): Promise<void> => {
+        await SettingsStore.setValue("notificationsEnabled", null, SettingLevel.DEVICE, true);
+        const cli = MatrixClientPeg.safeGet();
+        const eventType = getLocalNotificationAccountDataEventType(cli.deviceId!);
+        cli.setAccountData(eventType, {
+            is_silenced: false,
+        });
+    };
+
+    const onReject = (): void => {
+        notifier.setPromptHidden(true);
+    };
+
     ToastStore.sharedInstance().addOrReplaceToast({
         key: TOAST_KEY,
         title: fromMessageSend
diff --git a/apps/web/test/unit-tests/Notifier-test.ts b/apps/web/test/unit-tests/Notifier-test.ts
index 40504f17d8..e125eb2625 100644
--- a/apps/web/test/unit-tests/Notifier-test.ts
+++ b/apps/web/test/unit-tests/Notifier-test.ts
@@ -21,6 +21,7 @@ import {
 import { waitFor } from "jest-matrix-react";
 import { CallMembership, type SessionMembershipData, type MatrixRTCSession } from "matrix-js-sdk/src/matrixrtc";
 import { randomUUID } from "node:crypto";
+import { PushProcessor } from "matrix-js-sdk/src/pushprocessor";
 
 import type BasePlatform from "../../src/BasePlatform";
 import Notifier, { NOTIFICATION_SOUND_THROTTLE_MS } from "../../src/Notifier";
@@ -38,7 +39,6 @@ import {
     mockPlatformPeg,
 } from "../test-utils";
 import { getIncomingCallToastKey, IncomingCallToast } from "../../src/toasts/IncomingCallToast";
-import { SDKContextClass } from "../../src/contexts/SDKContextClass";
 import UserActivity from "../../src/UserActivity";
 import Modal from "../../src/Modal";
 import { mkThread } from "../test-utils/threads";
@@ -46,6 +46,7 @@ import dis from "../../src/dispatcher/dispatcher";
 import { type ThreadPayload } from "../../src/dispatcher/payloads/ThreadPayload";
 import { Action } from "../../src/dispatcher/actions";
 import { addReplyToMessageContent } from "../../src/utils/Reply";
+import { TestSDKContext } from "./TestSDKContext.ts";
 
 jest.mock("../../src/utils/notifications", () => ({
     // @ts-ignore
@@ -61,6 +62,9 @@ jest.mock("../../src/audio/compat", () => ({
 const settingsStoreGetValue = SettingsStore.getValue;
 
 describe("Notifier", () => {
+    const context = new TestSDKContext();
+    let notifier: Notifier;
+
     const roomId = "!room1:server";
     const testEvent = mkEvent({
         event: true,
@@ -145,6 +149,8 @@ describe("Notifier", () => {
         mockClient.pushRules = {
             global: {},
         };
+        // @ts-ignore
+        mockClient.pushProcessor = new PushProcessor(mockClient);
         accountDataEventKey = getLocalNotificationAccountDataEventType(mockClient.deviceId!);
 
         testRoom = new Room(roomId, mockClient, mockClient.getSafeUserId());
@@ -154,9 +160,11 @@ describe("Notifier", () => {
             maySendNotifications: jest.fn().mockReturnValue(true),
             displayNotification: jest.fn().mockReturnValue({ close: jest.fn() }),
             loudNotification: jest.fn(),
+            requestNotificationPermission: jest.fn(),
         });
 
-        Notifier.isBodyEnabled = jest.fn().mockReturnValue(true);
+        notifier = new Notifier(dis, context);
+        notifier.isBodyEnabled = jest.fn().mockReturnValue(true);
 
         mockClient.getRoom.mockImplementation((id: string | undefined): Room | null => {
             if (id === roomId) return testRoom;
@@ -165,13 +173,8 @@ describe("Notifier", () => {
         });
 
         // @ts-ignore
-        Notifier.backgroundAudio.audioContext = mockAudioContext;
-
-        // Notifier is a singleton, so its audio-notification throttle state
-        // (see NOTIFICATION_SOUND_THROTTLE_MS) leaks between tests. Reset it so
-        // each test exercises a clean instance.
-        // @ts-ignore - lastAudioNotificationMs is private
-        Notifier.lastAudioNotificationMs.clear();
+        notifier.backgroundAudio.audioContext = mockAudioContext;
+        context._client = mockClient;
     });
 
     describe("triggering notification from events", () => {
@@ -191,9 +194,9 @@ describe("Notifier", () => {
             // and references them in stop
             // so blows up if stopped before it was started
             if (hasStartedNotiferBefore) {
-                Notifier.stop();
+                notifier.stop();
             }
-            Notifier.start();
+            notifier.start();
             hasStartedNotiferBefore = true;
             mockClient.getRoom.mockReturnValue(testRoom);
             mockClient.getPushActionsForEvent.mockReturnValue({
@@ -215,7 +218,7 @@ describe("Notifier", () => {
         });
 
         afterAll(() => {
-            Notifier.stop();
+            notifier.stop();
         });
 
         it("does not create notifications before syncing has started", () => {
@@ -328,13 +331,13 @@ describe("Notifier", () => {
         ];
         it.each(testCases)("does not dispatch when notifications are silenced", ({ event, count }) => {
             mockClient.setAccountData(accountDataEventKey, event!);
-            Notifier.displayPopupNotification(testEvent, testRoom);
+            notifier.displayPopupNotification(testEvent, testRoom);
             expect(MockPlatform.displayNotification).toHaveBeenCalledTimes(count);
         });
 
         it("should display a notification for a voice message", () => {
             const audioEvent = mkAudioEvent();
-            Notifier.displayPopupNotification(audioEvent, testRoom);
+            notifier.displayPopupNotification(audioEvent, testRoom);
             expect(MockPlatform.displayNotification).toHaveBeenCalledWith(
                 "@user:example.com (!room1:server)",
                 "@user:example.com: test audio message",
@@ -358,7 +361,7 @@ describe("Notifier", () => {
                 room: testRoom.roomId,
             });
             addReplyToMessageContent(reply.getContent(), event);
-            Notifier.displayPopupNotification(reply, testRoom);
+            notifier.displayPopupNotification(reply, testRoom);
             expect(MockPlatform.displayNotification).toHaveBeenCalledWith(
                 "@bob:example.org (!room1:server)",
                 "This was a triumph",
@@ -398,7 +401,7 @@ describe("Notifier", () => {
                     formatted_body: formattedBody,
                 },
             });
-            Notifier.displayPopupNotification(spoilerEvent, testRoom);
+            notifier.displayPopupNotification(spoilerEvent, testRoom);
             expect(MockPlatform.displayNotification).toHaveBeenCalledWith(
                 "@bob:example.org (!room1:server)",
                 expected,
@@ -414,7 +417,7 @@ describe("Notifier", () => {
             jest.spyOn(SettingsStore, "getValue").mockImplementation((name: string): any => {
                 return { url: { content_uri: "foobar" } };
             });
-            expect(Notifier.getSoundForRoom("!roomId:server")).toBeNull();
+            expect(notifier.getSoundForRoom("!roomId:server")).toBeNull();
         });
     });
 
@@ -427,11 +430,11 @@ describe("Notifier", () => {
         it.each(testCases)("does not dispatch when notifications are silenced", ({ event, count }) => {
             // It's not ideal to only look at whether this function has been called
             // but avoids starting to look into DOM stuff
-            Notifier.getSoundForRoom = jest.fn();
+            notifier.getSoundForRoom = jest.fn();
 
             mockClient.setAccountData(accountDataEventKey, event!);
-            Notifier.playAudioNotification(testEvent, testRoom);
-            expect(Notifier.getSoundForRoom).toHaveBeenCalledTimes(count);
+            notifier.playAudioNotification(testEvent, testRoom);
+            expect(notifier.getSoundForRoom).toHaveBeenCalledTimes(count);
         });
     });
 
@@ -454,10 +457,10 @@ describe("Notifier", () => {
             mockClient.setAccountData(accountDataEventKey, { is_silenced: false });
 
             // Default sound path (no custom room sound).
-            Notifier.getSoundForRoom = jest.fn().mockReturnValue(null);
+            jest.spyOn(notifier, "getSoundForRoom").mockReturnValue(null);
 
             // @ts-ignore - backgroundAudio is private
-            playSpy = jest.spyOn(Notifier.backgroundAudio, "pickFormatAndPlay").mockResolvedValue({} as any);
+            playSpy = jest.spyOn(notifier.backgroundAudio, "pickFormatAndPlay").mockResolvedValue({} as any);
         });
 
         afterEach(() => {
@@ -467,36 +470,36 @@ describe("Notifier", () => {
 
         it("plays at most one sound for a burst of notifications within the throttle window", async () => {
             // Simulate a backlog of notifications arriving back-to-back on wake.
-            await Notifier.playAudioNotification(testEvent, testRoom);
-            await Notifier.playAudioNotification(testEvent, testRoom);
-            await Notifier.playAudioNotification(testEvent, testRoom);
+            await notifier.playAudioNotification(testEvent, testRoom);
+            await notifier.playAudioNotification(testEvent, testRoom);
+            await notifier.playAudioNotification(testEvent, testRoom);
 
             expect(playSpy).toHaveBeenCalledTimes(1);
         });
 
         it("plays again once the throttle window has elapsed", async () => {
-            await Notifier.playAudioNotification(testEvent, testRoom);
+            await notifier.playAudioNotification(testEvent, testRoom);
             expect(playSpy).toHaveBeenCalledTimes(1);
 
             // Advance the clock just past the throttle window.
             jest.setSystemTime(NOTIFICATION_SOUND_THROTTLE_MS + 1);
 
-            await Notifier.playAudioNotification(testEvent, testRoom);
+            await notifier.playAudioNotification(testEvent, testRoom);
             expect(playSpy).toHaveBeenCalledTimes(2);
         });
 
         it("throttles right up to the window boundary, then plays again (strict `<`)", async () => {
-            await Notifier.playAudioNotification(testEvent, testRoom);
+            await notifier.playAudioNotification(testEvent, testRoom);
             expect(playSpy).toHaveBeenCalledTimes(1);
 
             // One ms before the window elapses: still throttled.
             jest.setSystemTime(NOTIFICATION_SOUND_THROTTLE_MS - 1);
-            await Notifier.playAudioNotification(testEvent, testRoom);
+            await notifier.playAudioNotification(testEvent, testRoom);
             expect(playSpy).toHaveBeenCalledTimes(1);
 
             // Exactly at the window boundary: plays again (the comparison is a strict `<`).
             jest.setSystemTime(NOTIFICATION_SOUND_THROTTLE_MS);
-            await Notifier.playAudioNotification(testEvent, testRoom);
+            await notifier.playAudioNotification(testEvent, testRoom);
             expect(playSpy).toHaveBeenCalledTimes(2);
         });
 
@@ -504,16 +507,16 @@ describe("Notifier", () => {
             const soundA = { url: "sound-a.mp3", name: "A", type: "audio/mpeg", size: 1 };
             const soundB = { url: "sound-b.mp3", name: "B", type: "audio/mpeg", size: 1 };
             const otherRoom = new Room("!other:server", mockClient, mockClient.getSafeUserId());
-            (Notifier.getSoundForRoom as jest.Mock).mockImplementation((roomId: string) =>
+            jest.mocked(notifier.getSoundForRoom).mockImplementation((roomId: string) =>
                 roomId === testRoom.roomId ? soundA : soundB,
             );
             // @ts-ignore - backgroundAudio is private
-            const customPlaySpy = jest.spyOn(Notifier.backgroundAudio, "play").mockResolvedValue({} as any);
+            const customPlaySpy = jest.spyOn(notifier.backgroundAudio, "play").mockResolvedValue({} as any);
 
             // Two different sounds back-to-back within the window: BOTH must play (only identical
             // backlogged sounds are coalesced).
-            await Notifier.playAudioNotification(testEvent, testRoom);
-            await Notifier.playAudioNotification(testEvent, otherRoom);
+            await notifier.playAudioNotification(testEvent, testRoom);
+            await notifier.playAudioNotification(testEvent, otherRoom);
 
             expect(customPlaySpy).toHaveBeenCalledTimes(2);
             expect(customPlaySpy).toHaveBeenNthCalledWith(1, soundA.url);
@@ -524,8 +527,8 @@ describe("Notifier", () => {
         it("does not play, and does not arm the throttle, when notifications are silenced", async () => {
             mockClient.setAccountData(accountDataEventKey, { is_silenced: true });
 
-            await Notifier.playAudioNotification(testEvent, testRoom);
-            await Notifier.playAudioNotification(testEvent, testRoom);
+            await notifier.playAudioNotification(testEvent, testRoom);
+            await notifier.playAudioNotification(testEvent, testRoom);
 
             // Silencing gate short-circuits before the sound is played.
             expect(playSpy).not.toHaveBeenCalled();
@@ -533,7 +536,7 @@ describe("Notifier", () => {
             // ...and the silenced calls did NOT arm the throttle: once un-silenced, the next event plays
             // immediately (a regression arming the throttle on silenced events would suppress this).
             mockClient.setAccountData(accountDataEventKey, { is_silenced: false });
-            await Notifier.playAudioNotification(testEvent, testRoom);
+            await notifier.playAudioNotification(testEvent, testRoom);
             expect(playSpy).toHaveBeenCalledTimes(1);
         });
     });
@@ -567,8 +570,8 @@ describe("Notifier", () => {
                 }
                 return undefined;
             });
-            Notifier.start();
-            Notifier.onSyncStateChange(SyncState.Syncing, null);
+            notifier.start();
+            notifier.onSyncStateChange(SyncState.Syncing, null);
         });
 
         afterEach(() => {
@@ -738,15 +741,15 @@ describe("Notifier", () => {
             // and references them in stop
             // so blows up if stopped before it was started
             if (hasStartedNotiferBefore) {
-                Notifier.stop();
+                notifier.stop();
             }
-            Notifier.start();
+            notifier.start();
             hasStartedNotiferBefore = true;
             createLocalNotificationSettingsIfNeededMock.mockClear();
         });
 
         afterAll(() => {
-            Notifier.stop();
+            notifier.stop();
         });
 
         it("does not create local notifications event after a sync error", () => {
@@ -774,14 +777,14 @@ describe("Notifier", () => {
 
     describe("evaluateEvent", () => {
         beforeEach(() => {
-            jest.spyOn(SDKContextClass.instance.roomViewStore, "getRoomId").mockReturnValue(testRoom.roomId);
+            jest.spyOn(context.roomViewStore, "getRoomId").mockReturnValue(testRoom.roomId);
 
             jest.spyOn(UserActivity.sharedInstance(), "userActiveRecently").mockReturnValue(true);
 
             jest.spyOn(Modal, "hasDialogs").mockReturnValue(false);
 
-            jest.spyOn(Notifier, "displayPopupNotification").mockReset();
-            jest.spyOn(Notifier, "isEnabled").mockReturnValue(true);
+            jest.spyOn(notifier, "displayPopupNotification").mockReset();
+            jest.spyOn(notifier, "isEnabled").mockReturnValue(true);
 
             mockClient.getPushActionsForEvent.mockReturnValue({
                 notify: true,
@@ -792,9 +795,9 @@ describe("Notifier", () => {
         });
 
         it("should show a pop-up", () => {
-            expect(Notifier.displayPopupNotification).toHaveBeenCalledTimes(0);
-            Notifier.evaluateEvent(testEvent);
-            expect(Notifier.displayPopupNotification).toHaveBeenCalledTimes(0);
+            expect(notifier.displayPopupNotification).toHaveBeenCalledTimes(0);
+            notifier.evaluateEvent(testEvent);
+            expect(notifier.displayPopupNotification).toHaveBeenCalledTimes(0);
 
             const eventFromOtherRoom = mkEvent({
                 event: true,
@@ -804,8 +807,8 @@ describe("Notifier", () => {
                 content: {},
             });
 
-            Notifier.evaluateEvent(eventFromOtherRoom);
-            expect(Notifier.displayPopupNotification).toHaveBeenCalledTimes(1);
+            notifier.evaluateEvent(eventFromOtherRoom);
+            expect(notifier.displayPopupNotification).toHaveBeenCalledTimes(1);
         });
 
         it("should a pop-up for thread event", async () => {
@@ -816,34 +819,34 @@ describe("Notifier", () => {
                 participantUserIds: ["@bob:example.org"],
             });
 
-            expect(Notifier.displayPopupNotification).toHaveBeenCalledTimes(0);
+            expect(notifier.displayPopupNotification).toHaveBeenCalledTimes(0);
 
-            Notifier.evaluateEvent(rootEvent);
-            expect(Notifier.displayPopupNotification).toHaveBeenCalledTimes(0);
+            notifier.evaluateEvent(rootEvent);
+            expect(notifier.displayPopupNotification).toHaveBeenCalledTimes(0);
 
-            Notifier.evaluateEvent(events[1]);
-            expect(Notifier.displayPopupNotification).toHaveBeenCalledTimes(1);
+            notifier.evaluateEvent(events[1]);
+            expect(notifier.displayPopupNotification).toHaveBeenCalledTimes(1);
 
             dis.dispatch<ThreadPayload>({
                 action: Action.ViewThread,
                 thread_id: rootEvent.getId()!,
             });
 
-            await waitFor(() => expect(SDKContextClass.instance.roomViewStore.getThreadId()).toBe(rootEvent.getId()));
+            await waitFor(() => expect(context.roomViewStore.getThreadId()).toBe(rootEvent.getId()));
 
-            Notifier.evaluateEvent(events[1]);
-            expect(Notifier.displayPopupNotification).toHaveBeenCalledTimes(1);
+            notifier.evaluateEvent(events[1]);
+            expect(notifier.displayPopupNotification).toHaveBeenCalledTimes(1);
         });
 
         it("should show a pop-up for an audio message", () => {
-            Notifier.evaluateEvent(mkAudioEvent());
-            expect(Notifier.displayPopupNotification).toHaveBeenCalledTimes(1);
+            notifier.evaluateEvent(mkAudioEvent());
+            expect(notifier.displayPopupNotification).toHaveBeenCalledTimes(1);
         });
     });
 
     describe("setPromptHidden", () => {
         it("should persist by default", () => {
-            Notifier.setPromptHidden(true);
+            notifier.setPromptHidden(true);
             expect(localStorage.getItem("notifications_hidden")).toBeTruthy();
         });
     });
@@ -852,7 +855,7 @@ describe("Notifier", () => {
         it("should not evaluate events from the thread list fake timeline sets", async () => {
             mockClient.supportsThreads.mockReturnValue(true);
 
-            const fn = jest.spyOn(Notifier, "evaluateEvent");
+            const fn = jest.spyOn(notifier, "evaluateEvent");
 
             await testRoom.createThreadsTimelineSets();
             testRoom.threadsTimelineSets[0]!.addEventToTimeline(
@@ -870,4 +873,34 @@ describe("Notifier", () => {
             expect(fn).not.toHaveBeenCalled();
         });
     });
+
+    describe("setEnabled", () => {
+        it("should call fire notifier_enabled value=true when permission is granted", async () => {
+            const dispatchSpy = jest.spyOn(dis, "dispatch");
+            const notifier = new Notifier(dis, context);
+
+            jest.mocked(MockPlatform.requestNotificationPermission).mockResolvedValue("granted");
+
+            const resolvers = Promise.withResolvers<void>();
+            notifier.setEnabled(true, resolvers.resolve);
+            await resolvers.promise;
+
+            expect(dispatchSpy).toHaveBeenCalledWith({
+                action: "notifier_enabled",
+                value: true,
+            });
+        });
+
+        it("should call fire notifier_enabled value=false when disabling", async () => {
+            const dispatchSpy = jest.spyOn(dis, "dispatch");
+            const notifier = new Notifier(dis, context);
+
+            notifier.setEnabled(false);
+
+            expect(dispatchSpy).toHaveBeenCalledWith({
+                action: "notifier_enabled",
+                value: false,
+            });
+        });
+    });
 });
diff --git a/apps/web/test/unit-tests/submit-rageshake-test.ts b/apps/web/test/unit-tests/submit-rageshake-test.ts
index 8e47ac7c81..b33a4a9982 100644
--- a/apps/web/test/unit-tests/submit-rageshake-test.ts
+++ b/apps/web/test/unit-tests/submit-rageshake-test.ts
@@ -26,8 +26,8 @@ import { type FeatureSettingKey, type SettingKey } from "../../src/settings/Sett
 import { SettingLevel } from "../../src/settings/SettingLevel.ts";
 import SdkConfig from "../../src/SdkConfig.ts";
 import { BugReportEndpointURLLocal } from "../../src/IConfigOptions.ts";
-import { Notifier } from "../../src/Notifier.ts";
 import { MatrixClientPeg } from "../../src/MatrixClientPeg.ts";
+import { SDKContextClass } from "../../src/contexts/SDKContextClass.ts";
 
 describe("Rageshakes", () => {
     let mockClient: Mocked<MatrixClient>;
@@ -360,7 +360,7 @@ describe("Rageshakes", () => {
 
     describe("Settings Store", () => {
         beforeEach(() => {
-            jest.spyOn(Notifier, "isPossible").mockReturnValue(true);
+            jest.spyOn(SDKContextClass.instance.notifier, "isPossible").mockReturnValue(true);
         });
 
         afterEach(() => {
@@ -406,7 +406,7 @@ describe("Rageshakes", () => {
         it("should handle settings throwing when logged out", async () => {
             jest.mocked(MatrixClientPeg.get).mockRestore();
             jest.mocked(MatrixClientPeg.safeGet).mockRestore();
-            jest.spyOn(Notifier, "isPossible").mockImplementation(() => {
+            jest.spyOn(SDKContextClass.instance.notifier, "isPossible").mockImplementation(() => {
                 throw new Error("Test");
             });
 
@@ -419,7 +419,7 @@ describe("Rageshakes", () => {
         it("should handle reading notification settings when logged out", async () => {
             jest.mocked(MatrixClientPeg.get).mockRestore();
             jest.mocked(MatrixClientPeg.safeGet).mockRestore();
-            jest.spyOn(Notifier, "isPossible").mockReturnValue(true);
+            jest.spyOn(SDKContextClass.instance.notifier, "isPossible").mockReturnValue(true);
 
             const formData = await collectBugReport();
             expect(JSON.parse(formData.get("mx_local_settings") as string)["notificationsEnabled"]).toBe(false);