diff --git a/src/BasePlatform.ts b/src/BasePlatform.ts
index 9de1122430..630d56f06b 100644
--- a/src/BasePlatform.ts
+++ b/src/BasePlatform.ts
@@ -63,11 +63,11 @@ export default abstract class BasePlatform {
         this.startUpdateCheck = this.startUpdateCheck.bind(this);
     }
 
-    abstract getConfig(): Promise<IConfigOptions>;
+    public abstract getConfig(): Promise<IConfigOptions>;
 
-    abstract getDefaultDeviceDisplayName(): string;
+    public abstract getDefaultDeviceDisplayName(): string;
 
-    protected onAction = (payload: ActionPayload) => {
+    protected onAction = (payload: ActionPayload): void => {
         switch (payload.action) {
             case 'on_client_not_viable':
             case Action.OnLoggedOut:
@@ -77,24 +77,24 @@ export default abstract class BasePlatform {
     };
 
     // Used primarily for Analytics
-    abstract getHumanReadableName(): string;
+    public abstract getHumanReadableName(): string;
 
-    setNotificationCount(count: number) {
+    public setNotificationCount(count: number): void {
         this.notificationCount = count;
     }
 
-    setErrorStatus(errorDidOccur: boolean) {
+    public setErrorStatus(errorDidOccur: boolean): void {
         this.errorDidOccur = errorDidOccur;
     }
 
     /**
      * Whether we can call checkForUpdate on this platform build
      */
-    async canSelfUpdate(): Promise<boolean> {
+    public async canSelfUpdate(): Promise<boolean> {
         return false;
     }
 
-    startUpdateCheck() {
+    public startUpdateCheck(): void {
         hideUpdateToast();
         localStorage.removeItem(UPDATE_DEFER_KEY);
         dis.dispatch<CheckUpdatesPayload>({
@@ -107,8 +107,7 @@ export default abstract class BasePlatform {
      * Update the currently running app to the latest available version
      * and replace this instance of the app with the new version.
      */
-    installUpdate() {
-    }
+    public installUpdate(): void {}
 
     /**
      * Check if the version update has been deferred and that deferment is still in effect
@@ -130,7 +129,7 @@ export default abstract class BasePlatform {
      * Ignore the pending update and don't prompt about this version
      * until the next morning (8am).
      */
-    deferUpdate(newVersion: string) {
+    public deferUpdate(newVersion: string): void {
         const date = new Date(Date.now() + 24 * 60 * 60 * 1000);
         date.setHours(8, 0, 0, 0); // set to next 8am
         localStorage.setItem(UPDATE_DEFER_KEY, JSON.stringify([newVersion, date.getTime()]));
@@ -141,7 +140,7 @@ export default abstract class BasePlatform {
      * Return true if platform supports multi-language
      * spell-checking, otherwise false.
      */
-    supportsMultiLanguageSpellCheck(): boolean {
+    public supportsMultiLanguageSpellCheck(): boolean {
         return false;
     }
 
@@ -157,7 +156,7 @@ export default abstract class BasePlatform {
      * notifications, otherwise false.
      * @returns {boolean} whether the platform supports displaying notifications
      */
-    supportsNotifications(): boolean {
+    public supportsNotifications(): boolean {
         return false;
     }
 
@@ -166,7 +165,7 @@ export default abstract class BasePlatform {
      * to display notifications. Otherwise false.
      * @returns {boolean} whether the application has permission to display notifications
      */
-    maySendNotifications(): boolean {
+    public maySendNotifications(): boolean {
         return false;
     }
 
@@ -177,7 +176,7 @@ export default abstract class BasePlatform {
      * that is 'granted' if the user allowed the request or
      * 'denied' otherwise.
      */
-    abstract requestNotificationPermission(): Promise<string>;
+    public abstract requestNotificationPermission(): Promise<string>;
 
     public displayNotification(
         title: string,
@@ -211,10 +210,9 @@ export default abstract class BasePlatform {
         return notification;
     }
 
-    loudNotification(ev: MatrixEvent, room: Room) {
-    }
+    public loudNotification(ev: MatrixEvent, room: Room): void {}
 
-    clearNotification(notif: Notification) {
+    public clearNotification(notif: Notification): void {
         // Some browsers don't support this, e.g Safari on iOS
         // https://developer.mozilla.org/en-US/docs/Web/API/Notification/close
         if (notif.close) {
@@ -225,14 +223,14 @@ export default abstract class BasePlatform {
     /**
      * Returns a promise that resolves to a string representing the current version of the application.
      */
-    abstract getAppVersion(): Promise<string>;
+    public abstract getAppVersion(): Promise<string>;
 
     /*
      * If it's not expected that capturing the screen will work
      * with getUserMedia, return a string explaining why not.
      * Otherwise, return null.
      */
-    screenCaptureErrorString(): string {
+    public screenCaptureErrorString(): string {
         return "Not implemented";
     }
 
@@ -240,54 +238,54 @@ export default abstract class BasePlatform {
      * Restarts the application, without necessarily reloading
      * any application code
      */
-    abstract reload();
+    public abstract reload(): void;
 
-    supportsAutoLaunch(): boolean {
+    public supportsAutoLaunch(): boolean {
         return false;
     }
 
     // XXX: Surely this should be a setting like any other?
-    async getAutoLaunchEnabled(): Promise<boolean> {
+    public async getAutoLaunchEnabled(): Promise<boolean> {
         return false;
     }
 
-    async setAutoLaunchEnabled(enabled: boolean): Promise<void> {
+    public async setAutoLaunchEnabled(enabled: boolean): Promise<void> {
         throw new Error("Unimplemented");
     }
 
-    supportsWarnBeforeExit(): boolean {
+    public supportsWarnBeforeExit(): boolean {
         return false;
     }
 
-    async shouldWarnBeforeExit(): Promise<boolean> {
+    public async shouldWarnBeforeExit(): Promise<boolean> {
         return false;
     }
 
-    async setWarnBeforeExit(enabled: boolean): Promise<void> {
+    public async setWarnBeforeExit(enabled: boolean): Promise<void> {
         throw new Error("Unimplemented");
     }
 
-    supportsAutoHideMenuBar(): boolean {
+    public supportsAutoHideMenuBar(): boolean {
         return false;
     }
 
-    async getAutoHideMenuBarEnabled(): Promise<boolean> {
+    public async getAutoHideMenuBarEnabled(): Promise<boolean> {
         return false;
     }
 
-    async setAutoHideMenuBarEnabled(enabled: boolean): Promise<void> {
+    public async setAutoHideMenuBarEnabled(enabled: boolean): Promise<void> {
         throw new Error("Unimplemented");
     }
 
-    supportsMinimizeToTray(): boolean {
+    public supportsMinimizeToTray(): boolean {
         return false;
     }
 
-    async getMinimizeToTrayEnabled(): Promise<boolean> {
+    public async getMinimizeToTrayEnabled(): Promise<boolean> {
         return false;
     }
 
-    async setMinimizeToTrayEnabled(enabled: boolean): Promise<void> {
+    public async setMinimizeToTrayEnabled(enabled: boolean): Promise<void> {
         throw new Error("Unimplemented");
     }
 
@@ -309,23 +307,23 @@ export default abstract class BasePlatform {
      * @return {BaseEventIndexManager} The EventIndex manager for our platform,
      * can be null if the platform doesn't support event indexing.
      */
-    getEventIndexingManager(): BaseEventIndexManager | null {
+    public getEventIndexingManager(): BaseEventIndexManager | null {
         return null;
     }
 
-    async setLanguage(preferredLangs: string[]) {}
+    public setLanguage(preferredLangs: string[]) {}
 
-    setSpellCheckLanguages(preferredLangs: string[]) {}
+    public setSpellCheckLanguages(preferredLangs: string[]) {}
 
-    getSpellCheckLanguages(): Promise<string[]> | null {
+    public getSpellCheckLanguages(): Promise<string[]> | null {
         return null;
     }
 
-    async getDesktopCapturerSources(options: GetSourcesOptions): Promise<Array<DesktopCapturerSource>> {
+    public async getDesktopCapturerSources(options: GetSourcesOptions): Promise<Array<DesktopCapturerSource>> {
         return [];
     }
 
-    supportsDesktopCapturer(): boolean {
+    public supportsDesktopCapturer(): boolean {
         return false;
     }
 
@@ -335,7 +333,7 @@ export default abstract class BasePlatform {
 
     public navigateForwardBack(back: boolean): void {}
 
-    getAvailableSpellCheckLanguages(): Promise<string[]> | null {
+    public getAvailableSpellCheckLanguages(): Promise<string[]> | null {
         return null;
     }
 
@@ -352,7 +350,12 @@ export default abstract class BasePlatform {
      * @param {string} fragmentAfterLogin the hash to pass to the app during sso callback.
      * @param {string} idpId The ID of the Identity Provider being targeted, optional.
      */
-    startSingleSignOn(mxClient: MatrixClient, loginType: "sso" | "cas", fragmentAfterLogin: string, idpId?: string) {
+    public startSingleSignOn(
+        mxClient: MatrixClient,
+        loginType: "sso" | "cas",
+        fragmentAfterLogin: string,
+        idpId?: string,
+    ): void {
         // persist hs url and is url for when the user is returned to the app with the login token
         localStorage.setItem(SSO_HOMESERVER_URL_KEY, mxClient.getHomeserverUrl());
         if (mxClient.getIdentityServerUrl()) {
@@ -365,10 +368,6 @@ export default abstract class BasePlatform {
         window.location.href = mxClient.getSsoLoginUrl(callbackUrl.toString(), loginType, idpId); // redirect to SSO
     }
 
-    onKeyDown(ev: KeyboardEvent): boolean {
-        return false; // no shortcuts implemented
-    }
-
     /**
      * Get a previously stored pickle key.  The pickle key is used for
      * encrypting libolm objects.
@@ -377,7 +376,7 @@ export default abstract class BasePlatform {
      * @returns {string|null} the previously stored pickle key, or null if no
      *     pickle key has been stored.
      */
-    async getPickleKey(userId: string, deviceId: string): Promise<string | null> {
+    public async getPickleKey(userId: string, deviceId: string): Promise<string | null> {
         if (!window.crypto || !window.crypto.subtle) {
             return null;
         }
@@ -423,7 +422,7 @@ export default abstract class BasePlatform {
      * @returns {string|null} the pickle key, or null if the platform does not
      *     support storing pickle keys.
      */
-    async createPickleKey(userId: string, deviceId: string): Promise<string | null> {
+    public async createPickleKey(userId: string, deviceId: string): Promise<string | null> {
         if (!window.crypto || !window.crypto.subtle) {
             return null;
         }
@@ -462,7 +461,7 @@ export default abstract class BasePlatform {
      * @param {string} userId the user ID for the user that the pickle key is for.
      * @param {string} userId the device ID that the pickle key is for.
      */
-    async destroyPickleKey(userId: string, deviceId: string): Promise<void> {
+    public async destroyPickleKey(userId: string, deviceId: string): Promise<void> {
         try {
             await idbDelete("pickleKey", [userId, deviceId]);
         } catch (e) {