diff --git a/package.json b/package.json
index 704315ca69..cccb92d5d9 100644
--- a/package.json
+++ b/package.json
@@ -87,6 +87,7 @@
     "pako": "^2.0.3",
     "parse5": "^6.0.1",
     "png-chunks-extract": "^1.0.0",
+    "posthog-js": "1.12.2",
     "prop-types": "^15.7.2",
     "qrcode": "^1.4.4",
     "re-resizable": "^6.9.0",
@@ -123,6 +124,7 @@
     "@babel/traverse": "^7.12.12",
     "@matrix-org/olm": "https://gitlab.matrix.org/api/v4/projects/27/packages/npm/@matrix-org/olm/-/@matrix-org/olm-3.2.3.tgz",
     "@peculiar/webcrypto": "^1.1.4",
+    "@sentry/types": "^6.10.0",
     "@sinonjs/fake-timers": "^7.0.2",
     "@types/classnames": "^2.2.11",
     "@types/commonmark": "^0.27.4",
@@ -147,6 +149,7 @@
     "@typescript-eslint/eslint-plugin": "^4.17.0",
     "@typescript-eslint/parser": "^4.17.0",
     "@wojtekmaj/enzyme-adapter-react-17": "^0.6.1",
+    "allchange": "github:matrix-org/allchange",
     "babel-jest": "^26.6.3",
     "chokidar": "^3.5.1",
     "concurrently": "^5.3.0",
@@ -166,6 +169,7 @@
     "matrix-web-i18n": "github:matrix-org/matrix-web-i18n",
     "react-test-renderer": "^17.0.2",
     "rimraf": "^3.0.2",
+    "rrweb-snapshot": "1.1.7",
     "stylelint": "^13.9.0",
     "stylelint-config-standard": "^20.0.0",
     "stylelint-scss": "^3.18.0",
diff --git a/release_config.yaml b/release_config.yaml
new file mode 100644
index 0000000000..12e857cbdd
--- /dev/null
+++ b/release_config.yaml
@@ -0,0 +1,4 @@
+subprojects:
+    matrix-js-sdk:
+        includeByDefault: false
+
diff --git a/src/CallHandler.tsx b/src/CallHandler.tsx
index caf010200a..30fcf46790 100644
--- a/src/CallHandler.tsx
+++ b/src/CallHandler.tsx
@@ -930,6 +930,8 @@ export default class CallHandler extends EventEmitter {
             action: 'view_room',
             room_id: roomId,
         });
+
+        await this.placeCall(roomId, PlaceCallType.Voice, null);
     }
 
     private async startTransferToPhoneNumber(call: MatrixCall, destination: string, consultFirst: boolean) {
diff --git a/src/HtmlUtils.tsx b/src/HtmlUtils.tsx
index 27556a4012..2eee5214af 100644
--- a/src/HtmlUtils.tsx
+++ b/src/HtmlUtils.tsx
@@ -57,10 +57,33 @@ const BIGEMOJI_REGEX = new RegExp(`^(${EMOJIBASE_REGEX.source})+$`, 'i');
 
 const COLOR_REGEX = /^#[0-9a-fA-F]{6}$/;
 
-export const PERMITTED_URL_SCHEMES = ["bitcoin", "ftp", "geo", "http", "https", "im", "irc",
-                                     "ircs", "magnet", "mailto", "matrix", "mms", "news",
-                                     "nntp", "openpgp4fpr", "sip", "sftp", "sms", "smsto",
-                                     "ssh", "tel", "urn", "webcal", "wtai", "xmpp"];
+export const PERMITTED_URL_SCHEMES = [
+    "bitcoin",
+    "ftp",
+    "geo",
+    "http",
+    "https",
+    "im",
+    "irc",
+    "ircs",
+    "magnet",
+    "mailto",
+    "matrix",
+    "mms",
+    "news",
+    "nntp",
+    "openpgp4fpr",
+    "sip",
+    "sftp",
+    "sms",
+    "smsto",
+    "ssh",
+    "tel",
+    "urn",
+    "webcal",
+    "wtai",
+    "xmpp",
+];
 
 const MEDIA_API_MXC_REGEX = /\/_matrix\/media\/r0\/(?:download|thumbnail)\/(.+?)\/(.+?)(?:[?/]|$)/;
 
diff --git a/src/Lifecycle.ts b/src/Lifecycle.ts
index 410124a637..e48fd52cb1 100644
--- a/src/Lifecycle.ts
+++ b/src/Lifecycle.ts
@@ -48,6 +48,7 @@ import { Jitsi } from "./widgets/Jitsi";
 import { SSO_HOMESERVER_URL_KEY, SSO_ID_SERVER_URL_KEY, SSO_IDP_ID_KEY } from "./BasePlatform";
 import ThreepidInviteStore from "./stores/ThreepidInviteStore";
 import CountlyAnalytics from "./CountlyAnalytics";
+import { PosthogAnalytics } from "./PosthogAnalytics";
 import CallHandler from './CallHandler';
 import LifecycleCustomisations from "./customisations/Lifecycle";
 import ErrorDialog from "./components/views/dialogs/ErrorDialog";
@@ -573,6 +574,8 @@ async function doSetLoggedIn(
         await abortLogin();
     }
 
+    PosthogAnalytics.instance.updateAnonymityFromSettings(credentials.userId);
+
     Analytics.setLoggedIn(credentials.guest, credentials.homeserverUrl);
 
     MatrixClientPeg.replaceUsingCreds(credentials);
@@ -700,6 +703,8 @@ export function logout(): void {
         CountlyAnalytics.instance.enable(/* anonymous = */ true);
     }
 
+    PosthogAnalytics.instance.logout();
+
     if (MatrixClientPeg.get().isGuest()) {
         // logout doesn't work for guest sessions
         // Also we sometimes want to re-log in a guest session if we abort the login.
diff --git a/src/PosthogAnalytics.ts b/src/PosthogAnalytics.ts
new file mode 100644
index 0000000000..860a155aff
--- /dev/null
+++ b/src/PosthogAnalytics.ts
@@ -0,0 +1,355 @@
+/*
+Copyright 2021 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import posthog, { PostHog } from 'posthog-js';
+import PlatformPeg from './PlatformPeg';
+import SdkConfig from './SdkConfig';
+import SettingsStore from './settings/SettingsStore';
+
+/* Posthog analytics tracking.
+ *
+ * Anonymity behaviour is as follows:
+ *
+ * - If Posthog isn't configured in `config.json`, events are not sent.
+ * - If [Do Not Track](https://developer.mozilla.org/en-US/docs/Web/API/Navigator/doNotTrack) is
+ *   enabled, events are not sent (this detection is built into posthog and turned on via the
+ *   `respect_dnt` flag being passed to `posthog.init`).
+ * - If the `feature_pseudonymous_analytics_opt_in` labs flag is `true`, track pseudonomously, i.e.
+ *   hash all matrix identifiers in tracking events (user IDs, room IDs etc) using SHA-256.
+ * - Otherwise, if the existing `analyticsOptIn` flag is `true`, track anonymously, i.e.
+ *   redact all matrix identifiers in tracking events.
+ * - If both flags are false or not set, events are not sent.
+ */
+
+interface IEvent {
+    // The event name that will be used by PostHog. Event names should use snake_case.
+    eventName: string;
+
+    // The properties of the event that will be stored in PostHog. This is just a placeholder,
+    // extending interfaces must override this with a concrete definition to do type validation.
+    properties: {};
+}
+
+export enum Anonymity {
+    Disabled,
+    Anonymous,
+    Pseudonymous
+}
+
+// If an event extends IPseudonymousEvent, the event contains pseudonymous data
+// that won't be sent unless the user has explicitly consented to pseudonymous tracking.
+// For example, it might contain hashed user IDs or room IDs.
+// Such events will be automatically dropped if PosthogAnalytics.anonymity isn't set to Pseudonymous.
+export interface IPseudonymousEvent extends IEvent {}
+
+// If an event extends IAnonymousEvent, the event strictly contains *only* anonymous data;
+// i.e. no identifiers that can be associated with the user.
+export interface IAnonymousEvent extends IEvent {}
+
+export interface IRoomEvent extends IPseudonymousEvent {
+    hashedRoomId: string;
+}
+
+interface IPageView extends IAnonymousEvent {
+    eventName: "$pageview";
+    properties: {
+        durationMs?: number;
+        screen?: string;
+    };
+}
+
+const hashHex = async (input: string): Promise<string> => {
+    const buf = new TextEncoder().encode(input);
+    const digestBuf = await window.crypto.subtle.digest("sha-256", buf);
+    return [...new Uint8Array(digestBuf)].map((b: number) => b.toString(16).padStart(2, "0")).join("");
+};
+
+const whitelistedScreens = new Set([
+    "register", "login", "forgot_password", "soft_logout", "new", "settings", "welcome", "home", "start", "directory",
+    "start_sso", "start_cas", "groups", "complete_security", "post_registration", "room", "user", "group",
+]);
+
+export async function getRedactedCurrentLocation(
+    origin: string,
+    hash: string,
+    pathname: string,
+    anonymity: Anonymity,
+): Promise<string> {
+    // Redact PII from the current location.
+    // If anonymous is true, redact entirely, if false, substitute it with a hash.
+    // For known screens, assumes a URL structure of /<screen name>/might/be/pii
+    if (origin.startsWith('file://')) {
+        pathname = "/<redacted_file_scheme_url>/";
+    }
+
+    let hashStr;
+    if (hash == "") {
+        hashStr = "";
+    } else {
+        let [beforeFirstSlash, screen, ...parts] = hash.split("/");
+
+        if (!whitelistedScreens.has(screen)) {
+            screen = "<redacted_screen_name>";
+        }
+
+        for (let i = 0; i < parts.length; i++) {
+            parts[i] = anonymity === Anonymity.Anonymous ? `<redacted>` : await hashHex(parts[i]);
+        }
+
+        hashStr = `${beforeFirstSlash}/${screen}/${parts.join("/")}`;
+    }
+    return origin + pathname + hashStr;
+}
+
+interface PlatformProperties {
+    appVersion: string;
+    appPlatform: string;
+}
+
+export class PosthogAnalytics {
+    /* Wrapper for Posthog analytics.
+     * 3 modes of anonymity are supported, governed by this.anonymity
+     * - Anonymity.Disabled means *no data* is passed to posthog
+     * - Anonymity.Anonymous means all identifers will be redacted before being passed to posthog
+     * - Anonymity.Pseudonymous means all identifiers will be hashed via SHA-256 before being passed
+     *   to Posthog
+     *
+     * To update anonymity, call updateAnonymityFromSettings() or you can set it directly via setAnonymity().
+     *
+     * To pass an event to Posthog:
+     *
+     * 1. Declare a type for the event, extending IAnonymousEvent, IPseudonymousEvent or IRoomEvent.
+     * 2. Call the appropriate track*() method. Pseudonymous events will be dropped when anonymity is
+     *    Anonymous or Disabled; Anonymous events will be dropped when anonymity is Disabled.
+     */
+
+    private anonymity = Anonymity.Disabled;
+    // set true during the constructor if posthog config is present, otherwise false
+    private enabled = false;
+    private static _instance = null;
+    private platformSuperProperties = {};
+
+    public static get instance(): PosthogAnalytics {
+        if (!this._instance) {
+            this._instance = new PosthogAnalytics(posthog);
+        }
+        return this._instance;
+    }
+
+    constructor(private readonly posthog: PostHog) {
+        const posthogConfig = SdkConfig.get()["posthog"];
+        if (posthogConfig) {
+            this.posthog.init(posthogConfig.projectApiKey, {
+                api_host: posthogConfig.apiHost,
+                autocapture: false,
+                mask_all_text: true,
+                mask_all_element_attributes: true,
+                // This only triggers on page load, which for our SPA isn't particularly useful.
+                // Plus, the .capture call originating from somewhere in posthog makes it hard
+                // to redact URLs, which requires async code.
+                //
+                // To raise this manually, just call .capture("$pageview") or posthog.capture_pageview.
+                capture_pageview: false,
+                sanitize_properties: this.sanitizeProperties,
+                respect_dnt: true,
+            });
+            this.enabled = true;
+        } else {
+            this.enabled = false;
+        }
+    }
+
+    private sanitizeProperties = (properties: posthog.Properties): posthog.Properties => {
+        // Callback from posthog to sanitize properties before sending them to the server.
+        //
+        // Here we sanitize posthog's built in properties which leak PII e.g. url reporting.
+        // See utils.js _.info.properties in posthog-js.
+
+        // Replace the $current_url with a redacted version.
+        // $redacted_current_url is injected by this class earlier in capture(), as its generation
+        // is async and can't be done in this non-async callback.
+        if (!properties['$redacted_current_url']) {
+            console.log("$redacted_current_url not set in sanitizeProperties, will drop $current_url entirely");
+        }
+        properties['$current_url'] = properties['$redacted_current_url'];
+        delete properties['$redacted_current_url'];
+
+        if (this.anonymity == Anonymity.Anonymous) {
+            // drop referrer information for anonymous users
+            properties['$referrer'] = null;
+            properties['$referring_domain'] = null;
+            properties['$initial_referrer'] = null;
+            properties['$initial_referring_domain'] = null;
+
+            // drop device ID, which is a UUID persisted in local storage
+            properties['$device_id'] = null;
+        }
+
+        return properties;
+    };
+
+    private static getAnonymityFromSettings(): Anonymity {
+        // determine the current anonymity level based on current user settings
+
+        // "Send anonymous usage data which helps us improve Element. This will use a cookie."
+        const analyticsOptIn = SettingsStore.getValue("analyticsOptIn", null, true);
+
+        // (proposed wording) "Send pseudonymous usage data which helps us improve Element. This will use a cookie."
+        //
+        // TODO: Currently, this is only a labs flag, for testing purposes.
+        const pseudonumousOptIn = SettingsStore.getValue("feature_pseudonymous_analytics_opt_in", null, true);
+
+        let anonymity;
+        if (pseudonumousOptIn) {
+            anonymity = Anonymity.Pseudonymous;
+        } else if (analyticsOptIn) {
+            anonymity = Anonymity.Anonymous;
+        } else {
+            anonymity = Anonymity.Disabled;
+        }
+
+        return anonymity;
+    }
+
+    private registerSuperProperties(properties: posthog.Properties) {
+        if (this.enabled) {
+            this.posthog.register(properties);
+        }
+    }
+
+    private static async getPlatformProperties(): Promise<PlatformProperties> {
+        const platform = PlatformPeg.get();
+        let appVersion;
+        try {
+            appVersion = await platform.getAppVersion();
+        } catch (e) {
+            // this happens if no version is set i.e. in dev
+            appVersion = "unknown";
+        }
+
+        return {
+            appVersion,
+            appPlatform: platform.getHumanReadableName(),
+        };
+    }
+
+    private async capture(eventName: string, properties: posthog.Properties) {
+        if (!this.enabled) {
+            return;
+        }
+        const { origin, hash, pathname } = window.location;
+        properties['$redacted_current_url'] = await getRedactedCurrentLocation(
+            origin, hash, pathname, this.anonymity);
+        this.posthog.capture(eventName, properties);
+    }
+
+    public isEnabled(): boolean {
+        return this.enabled;
+    }
+
+    public setAnonymity(anonymity: Anonymity): void {
+        // Update this.anonymity.
+        // This is public for testing purposes, typically you want to call updateAnonymityFromSettings
+        // to ensure this value is in step with the user's settings.
+        if (this.enabled && (anonymity == Anonymity.Disabled || anonymity == Anonymity.Anonymous)) {
+            // when transitioning to Disabled or Anonymous ensure we clear out any prior state
+            // set in posthog e.g. distinct ID
+            this.posthog.reset();
+            // Restore any previously set platform super properties
+            this.registerSuperProperties(this.platformSuperProperties);
+        }
+        this.anonymity = anonymity;
+    }
+
+    public async identifyUser(userId: string): Promise<void> {
+        if (this.anonymity == Anonymity.Pseudonymous) {
+            this.posthog.identify(await hashHex(userId));
+        }
+    }
+
+    public getAnonymity(): Anonymity {
+        return this.anonymity;
+    }
+
+    public logout(): void {
+        if (this.enabled) {
+            this.posthog.reset();
+        }
+        this.setAnonymity(Anonymity.Anonymous);
+    }
+
+    public async trackPseudonymousEvent<E extends IPseudonymousEvent>(
+        eventName: E["eventName"],
+        properties: E["properties"] = {},
+    ) {
+        if (this.anonymity == Anonymity.Anonymous || this.anonymity == Anonymity.Disabled) return;
+        await this.capture(eventName, properties);
+    }
+
+    public async trackAnonymousEvent<E extends IAnonymousEvent>(
+        eventName: E["eventName"],
+        properties: E["properties"] = {},
+    ): Promise<void> {
+        if (this.anonymity == Anonymity.Disabled) return;
+        await this.capture(eventName, properties);
+    }
+
+    public async trackRoomEvent<E extends IRoomEvent>(
+        eventName: E["eventName"],
+        roomId: string,
+        properties: Omit<E["properties"], "roomId">,
+    ): Promise<void> {
+        const updatedProperties = {
+            ...properties,
+            hashedRoomId: roomId ? await hashHex(roomId) : null,
+        };
+        await this.trackPseudonymousEvent(eventName, updatedProperties);
+    }
+
+    public async trackPageView(durationMs: number): Promise<void> {
+        const hash = window.location.hash;
+
+        let screen = null;
+        const split = hash.split("/");
+        if (split.length >= 2) {
+            screen = split[1];
+        }
+
+        await this.trackAnonymousEvent<IPageView>("$pageview", {
+            durationMs,
+            screen,
+        });
+    }
+
+    public async updatePlatformSuperProperties(): Promise<void> {
+        // Update super properties in posthog with our platform (app version, platform).
+        // These properties will be subsequently passed in every event.
+        //
+        // This only needs to be done once per page lifetime. Note that getPlatformProperties
+        // is async and can involve a network request if we are running in a browser.
+        this.platformSuperProperties = await PosthogAnalytics.getPlatformProperties();
+        this.registerSuperProperties(this.platformSuperProperties);
+    }
+
+    public async updateAnonymityFromSettings(userId?: string): Promise<void> {
+        // Update this.anonymity based on the user's analytics opt-in settings
+        // Identify the user (via hashed user ID) to posthog if anonymity is pseudonmyous
+        this.setAnonymity(PosthogAnalytics.getAnonymityFromSettings());
+        if (userId && this.getAnonymity() == Anonymity.Pseudonymous) {
+            await this.identifyUser(userId);
+        }
+    }
+}
diff --git a/src/components/structures/MatrixChat.tsx b/src/components/structures/MatrixChat.tsx
index 8cfe35c4cf..60c78b5f9e 100644
--- a/src/components/structures/MatrixChat.tsx
+++ b/src/components/structures/MatrixChat.tsx
@@ -107,6 +107,7 @@ import UIStore, { UI_EVENTS } from "../../stores/UIStore";
 import SoftLogout from './auth/SoftLogout';
 import { makeRoomPermalink } from "../../utils/permalinks/Permalinks";
 import { copyPlaintext } from "../../utils/strings";
+import { PosthogAnalytics } from '../../PosthogAnalytics';
 
 /** constants for MatrixChat.state.view */
 export enum Views {
@@ -387,6 +388,10 @@ export default class MatrixChat extends React.PureComponent<IProps, IState> {
         if (SettingsStore.getValue("analyticsOptIn")) {
             Analytics.enable();
         }
+
+        PosthogAnalytics.instance.updateAnonymityFromSettings();
+        PosthogAnalytics.instance.updatePlatformSuperProperties();
+
         CountlyAnalytics.instance.enable(/* anonymous = */ true);
     }
 
@@ -443,6 +448,7 @@ export default class MatrixChat extends React.PureComponent<IProps, IState> {
             const durationMs = this.stopPageChangeTimer();
             Analytics.trackPageChange(durationMs);
             CountlyAnalytics.instance.trackPageChange(durationMs);
+            PosthogAnalytics.instance.trackPageView(durationMs);
         }
         if (this.focusComposer) {
             dis.fire(Action.FocusSendMessageComposer);
diff --git a/src/components/views/settings/tabs/user/SecurityUserSettingsTab.js b/src/components/views/settings/tabs/user/SecurityUserSettingsTab.js
index 79d501e712..25b0b86cb1 100644
--- a/src/components/views/settings/tabs/user/SecurityUserSettingsTab.js
+++ b/src/components/views/settings/tabs/user/SecurityUserSettingsTab.js
@@ -36,6 +36,7 @@ import { UIFeature } from "../../../../../settings/UIFeature";
 import { isE2eAdvancedPanelPossible } from "../../E2eAdvancedPanel";
 import CountlyAnalytics from "../../../../../CountlyAnalytics";
 import { replaceableComponent } from "../../../../../utils/replaceableComponent";
+import { PosthogAnalytics } from "../../../../../PosthogAnalytics";
 
 export class IgnoredUser extends React.Component {
     static propTypes = {
@@ -106,6 +107,7 @@ export default class SecurityUserSettingsTab extends React.Component {
     _updateAnalytics = (checked) => {
         checked ? Analytics.enable() : Analytics.disable();
         CountlyAnalytics.instance.enable(/* anonymous = */ !checked);
+        PosthogAnalytics.instance.updateAnonymityFromSettings(MatrixClientPeg.get().getUserId());
     };
 
     _onExportE2eKeysClicked = () => {
diff --git a/src/i18n/strings/en_EN.json b/src/i18n/strings/en_EN.json
index aa736bb1e8..9420f00089 100644
--- a/src/i18n/strings/en_EN.json
+++ b/src/i18n/strings/en_EN.json
@@ -820,6 +820,7 @@
     "Show message previews for reactions in DMs": "Show message previews for reactions in DMs",
     "Show message previews for reactions in all rooms": "Show message previews for reactions in all rooms",
     "Offline encrypted messaging using dehydrated devices": "Offline encrypted messaging using dehydrated devices",
+    "Send pseudonymous analytics data": "Send pseudonymous analytics data",
     "Enable advanced debugging for the room list": "Enable advanced debugging for the room list",
     "Show info about bridges in room settings": "Show info about bridges in room settings",
     "New layout switcher (with message bubbles)": "New layout switcher (with message bubbles)",
diff --git a/src/settings/Settings.tsx b/src/settings/Settings.tsx
index c36e2b90bf..cfe2c097fc 100644
--- a/src/settings/Settings.tsx
+++ b/src/settings/Settings.tsx
@@ -41,6 +41,7 @@ import { Layout } from "./Layout";
 import ReducedMotionController from './controllers/ReducedMotionController';
 import IncompatibleController from "./controllers/IncompatibleController";
 import SdkConfig from "../SdkConfig";
+import PseudonymousAnalyticsController from './controllers/PseudonymousAnalyticsController';
 import NewLayoutSwitcherController from './controllers/NewLayoutSwitcherController';
 
 // These are just a bunch of helper arrays to avoid copy/pasting a bunch of times
@@ -268,6 +269,13 @@ export const SETTINGS: {[setting: string]: ISetting} = {
         supportedLevels: LEVELS_FEATURE,
         default: false,
     },
+    "feature_pseudonymous_analytics_opt_in": {
+        isFeature: true,
+        supportedLevels: LEVELS_FEATURE,
+        displayName: _td('Send pseudonymous analytics data'),
+        default: false,
+        controller: new PseudonymousAnalyticsController(),
+    },
     "advancedRoomListLogging": {
         // TODO: Remove flag before launch: https://github.com/vector-im/element-web/issues/14231
         displayName: _td("Enable advanced debugging for the room list"),
diff --git a/src/settings/controllers/PseudonymousAnalyticsController.ts b/src/settings/controllers/PseudonymousAnalyticsController.ts
new file mode 100644
index 0000000000..a82b9685ef
--- /dev/null
+++ b/src/settings/controllers/PseudonymousAnalyticsController.ts
@@ -0,0 +1,26 @@
+/*
+Copyright 2021 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import SettingController from "./SettingController";
+import { SettingLevel } from "../SettingLevel";
+import { PosthogAnalytics } from "../../PosthogAnalytics";
+import { MatrixClientPeg } from "../../MatrixClientPeg";
+
+export default class PseudonymousAnalyticsController extends SettingController {
+    public onChange(level: SettingLevel, roomId: string, newValue: any) {
+        PosthogAnalytics.instance.updateAnonymityFromSettings(MatrixClientPeg.get().getUserId());
+    }
+}
diff --git a/test/CallHandler-test.ts b/test/CallHandler-test.ts
index 4c3dd25fb4..1a4560ad4a 100644
--- a/test/CallHandler-test.ts
+++ b/test/CallHandler-test.ts
@@ -156,13 +156,14 @@ describe('CallHandler', () => {
         DMRoomMap.setShared(null);
         // @ts-ignore
         window.mxCallHandler = null;
+        fakeCall = null;
         MatrixClientPeg.unset();
 
         document.body.removeChild(audioElement);
         SdkConfig.unset();
     });
 
-    it('should look up the correct user and open the room when a phone number is dialled', async () => {
+    it('should look up the correct user and start a call in the room when a phone number is dialled', async () => {
         MatrixClientPeg.get().getThirdpartyUser = jest.fn().mockResolvedValue([{
             userid: '@user2:example.org',
             protocol: "im.vector.protocol.sip_native",
@@ -179,6 +180,9 @@ describe('CallHandler', () => {
 
         const viewRoomPayload = await untilDispatch('view_room');
         expect(viewRoomPayload.room_id).toEqual(MAPPED_ROOM_ID);
+
+        // Check that a call was started
+        expect(fakeCall.roomId).toEqual(MAPPED_ROOM_ID);
     });
 
     it('should move calls between rooms when remote asserted identity changes', async () => {
diff --git a/test/PosthogAnalytics-test.ts b/test/PosthogAnalytics-test.ts
new file mode 100644
index 0000000000..6cb1743051
--- /dev/null
+++ b/test/PosthogAnalytics-test.ts
@@ -0,0 +1,232 @@
+/*
+Copyright 2021 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import {
+    Anonymity,
+    getRedactedCurrentLocation,
+    IAnonymousEvent,
+    IPseudonymousEvent,
+    IRoomEvent,
+    PosthogAnalytics,
+} from '../src/PosthogAnalytics';
+
+import SdkConfig from '../src/SdkConfig';
+
+class FakePosthog {
+    public capture;
+    public init;
+    public identify;
+    public reset;
+    public register;
+
+    constructor() {
+        this.capture = jest.fn();
+        this.init = jest.fn();
+        this.identify = jest.fn();
+        this.reset = jest.fn();
+        this.register = jest.fn();
+    }
+}
+
+export interface ITestEvent extends IAnonymousEvent {
+    key: "jest_test_event";
+    properties: {
+        foo: string;
+    };
+}
+
+export interface ITestPseudonymousEvent extends IPseudonymousEvent {
+    key: "jest_test_pseudo_event";
+    properties: {
+        foo: string;
+    };
+}
+
+export interface ITestRoomEvent extends IRoomEvent {
+    key: "jest_test_room_event";
+    properties: {
+        foo: string;
+    };
+}
+
+describe("PosthogAnalytics", () => {
+    let fakePosthog: FakePosthog;
+    const shaHashes = {
+        "42": "73475cb40a568e8da8a045ced110137e159f890ac4da883b6b17dc651b3a8049",
+        "some": "a6b46dd0d1ae5e86cbc8f37e75ceeb6760230c1ca4ffbcb0c97b96dd7d9c464b",
+        "pii": "bd75b3e080945674c0351f75e0db33d1e90986fa07b318ea7edf776f5eef38d4",
+        "foo": "2c26b46b68ffc68ff99b453c1d30413413422d706483bfa0f98a5e886266e7ae",
+    };
+
+    beforeEach(() => {
+        fakePosthog = new FakePosthog();
+
+        window.crypto = {
+            subtle: {
+                digest: async (_, encodedMessage) => {
+                    const message = new TextDecoder().decode(encodedMessage);
+                    const hexHash = shaHashes[message];
+                    const bytes = [];
+                    for (let c = 0; c < hexHash.length; c += 2) {
+                        bytes.push(parseInt(hexHash.substr(c, 2), 16));
+                    }
+                    return bytes;
+                },
+            },
+        };
+    });
+
+    afterEach(() => {
+        window.crypto = null;
+    });
+
+    describe("Initialisation", () => {
+        it("Should not be enabled without config being set", () => {
+            jest.spyOn(SdkConfig, "get").mockReturnValue({});
+            const analytics = new PosthogAnalytics(fakePosthog);
+            expect(analytics.isEnabled()).toBe(false);
+        });
+
+        it("Should be enabled if config is set", () => {
+            jest.spyOn(SdkConfig, "get").mockReturnValue({
+                posthog: {
+                    projectApiKey: "foo",
+                    apiHost: "bar",
+                },
+            });
+            const analytics = new PosthogAnalytics(fakePosthog);
+            analytics.setAnonymity(Anonymity.Pseudonymous);
+            expect(analytics.isEnabled()).toBe(true);
+        });
+    });
+
+    describe("Tracking", () => {
+        let analytics: PosthogAnalytics;
+
+        beforeEach(() => {
+            jest.spyOn(SdkConfig, "get").mockReturnValue({
+                posthog: {
+                    projectApiKey: "foo",
+                    apiHost: "bar",
+                },
+            });
+
+            analytics = new PosthogAnalytics(fakePosthog);
+        });
+
+        it("Should pass trackAnonymousEvent() to posthog", async () => {
+            analytics.setAnonymity(Anonymity.Pseudonymous);
+            await analytics.trackAnonymousEvent<ITestEvent>("jest_test_event", {
+                foo: "bar",
+            });
+            expect(fakePosthog.capture.mock.calls[0][0]).toBe("jest_test_event");
+            expect(fakePosthog.capture.mock.calls[0][1]["foo"]).toEqual("bar");
+        });
+
+        it("Should pass trackRoomEvent to posthog", async () => {
+            analytics.setAnonymity(Anonymity.Pseudonymous);
+            const roomId = "42";
+            await analytics.trackRoomEvent<IRoomEvent>("jest_test_event", roomId, {
+                foo: "bar",
+            });
+            expect(fakePosthog.capture.mock.calls[0][0]).toBe("jest_test_event");
+            expect(fakePosthog.capture.mock.calls[0][1]["foo"]).toEqual("bar");
+            expect(fakePosthog.capture.mock.calls[0][1]["hashedRoomId"])
+                .toEqual("73475cb40a568e8da8a045ced110137e159f890ac4da883b6b17dc651b3a8049");
+        });
+
+        it("Should pass trackPseudonymousEvent() to posthog", async () => {
+            analytics.setAnonymity(Anonymity.Pseudonymous);
+            await analytics.trackPseudonymousEvent<ITestEvent>("jest_test_pseudo_event", {
+                foo: "bar",
+            });
+            expect(fakePosthog.capture.mock.calls[0][0]).toBe("jest_test_pseudo_event");
+            expect(fakePosthog.capture.mock.calls[0][1]["foo"]).toEqual("bar");
+        });
+
+        it("Should not track pseudonymous messages if anonymous", async () => {
+            analytics.setAnonymity(Anonymity.Anonymous);
+            await analytics.trackPseudonymousEvent<ITestEvent>("jest_test_event", {
+                foo: "bar",
+            });
+            expect(fakePosthog.capture.mock.calls.length).toBe(0);
+        });
+
+        it("Should not track any events if disabled", async () => {
+            analytics.setAnonymity(Anonymity.Disabled);
+            await analytics.trackPseudonymousEvent<ITestEvent>("jest_test_event", {
+                foo: "bar",
+            });
+            await analytics.trackAnonymousEvent<ITestEvent>("jest_test_event", {
+                foo: "bar",
+            });
+            await analytics.trackRoomEvent<ITestRoomEvent>("room id", "foo", {
+                foo: "bar",
+            });
+            await analytics.trackPageView(200);
+            expect(fakePosthog.capture.mock.calls.length).toBe(0);
+        });
+
+        it("Should pseudonymise a location of a known screen", async () => {
+            const location = await getRedactedCurrentLocation(
+                "https://foo.bar", "#/register/some/pii", "/", Anonymity.Pseudonymous);
+            expect(location).toBe(
+                `https://foo.bar/#/register/\
+a6b46dd0d1ae5e86cbc8f37e75ceeb6760230c1ca4ffbcb0c97b96dd7d9c464b/\
+bd75b3e080945674c0351f75e0db33d1e90986fa07b318ea7edf776f5eef38d4`);
+        });
+
+        it("Should anonymise a location of a known screen", async () => {
+            const location = await getRedactedCurrentLocation(
+                "https://foo.bar", "#/register/some/pii", "/", Anonymity.Anonymous);
+            expect(location).toBe("https://foo.bar/#/register/<redacted>/<redacted>");
+        });
+
+        it("Should pseudonymise a location of an unknown screen", async () => {
+            const location = await getRedactedCurrentLocation(
+                "https://foo.bar", "#/not_a_screen_name/some/pii", "/", Anonymity.Pseudonymous);
+            expect(location).toBe(
+                `https://foo.bar/#/<redacted_screen_name>/\
+a6b46dd0d1ae5e86cbc8f37e75ceeb6760230c1ca4ffbcb0c97b96dd7d9c464b/\
+bd75b3e080945674c0351f75e0db33d1e90986fa07b318ea7edf776f5eef38d4`);
+        });
+
+        it("Should anonymise a location of an unknown screen", async () => {
+            const location = await getRedactedCurrentLocation(
+                "https://foo.bar", "#/not_a_screen_name/some/pii", "/", Anonymity.Anonymous);
+            expect(location).toBe("https://foo.bar/#/<redacted_screen_name>/<redacted>/<redacted>");
+        });
+
+        it("Should handle an empty hash", async () => {
+            const location = await getRedactedCurrentLocation(
+                "https://foo.bar", "", "/", Anonymity.Anonymous);
+            expect(location).toBe("https://foo.bar/");
+        });
+
+        it("Should identify the user to posthog if pseudonymous", async () => {
+            analytics.setAnonymity(Anonymity.Pseudonymous);
+            await analytics.identifyUser("foo");
+            expect(fakePosthog.identify.mock.calls[0][0])
+                .toBe("2c26b46b68ffc68ff99b453c1d30413413422d706483bfa0f98a5e886266e7ae");
+        });
+
+        it("Should not identify the user to posthog if anonymous", async () => {
+            analytics.setAnonymity(Anonymity.Anonymous);
+            await analytics.identifyUser("foo");
+            expect(fakePosthog.identify.mock.calls.length).toBe(0);
+        });
+    });
+});
diff --git a/test/test-utils.js b/test/test-utils.js
index 217c399443..bbab47589a 100644
--- a/test/test-utils.js
+++ b/test/test-utils.js
@@ -78,6 +78,7 @@ export function createTestClient() {
         },
         mxcUrlToHttp: (mxc) => 'http://this.is.a.url/',
         setAccountData: jest.fn(),
+        setRoomAccountData: jest.fn(),
         sendTyping: jest.fn().mockResolvedValue({}),
         sendMessage: () => jest.fn().mockResolvedValue({}),
         getSyncState: () => "SYNCING",
diff --git a/tsconfig.json b/tsconfig.json
index b139e8e8d1..2e0131609c 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -22,10 +22,10 @@
       "es2019",
       "dom",
       "dom.iterable"
-    ]
+    ],
   },
   "include": [
     "./src/**/*.ts",
     "./src/**/*.tsx"
-  ]
+  ],  
 }
diff --git a/yarn.lock b/yarn.lock
index f121112a1b..a780d1ffa0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1324,6 +1324,107 @@
     "@nodelib/fs.scandir" "2.1.5"
     fastq "^1.6.0"
 
+"@octokit/auth-token@^2.4.4":
+  version "2.4.5"
+  resolved "https://registry.yarnpkg.com/@octokit/auth-token/-/auth-token-2.4.5.tgz#568ccfb8cb46f36441fac094ce34f7a875b197f3"
+  integrity sha512-BpGYsPgJt05M7/L/5FoE1PiAbdxXFZkX/3kDYcsvd1v6UhlnE5e96dTDr0ezX/EFwciQxf3cNV0loipsURU+WA==
+  dependencies:
+    "@octokit/types" "^6.0.3"
+
+"@octokit/core@^3.5.0":
+  version "3.5.1"
+  resolved "https://registry.yarnpkg.com/@octokit/core/-/core-3.5.1.tgz#8601ceeb1ec0e1b1b8217b960a413ed8e947809b"
+  integrity sha512-omncwpLVxMP+GLpLPgeGJBF6IWJFjXDS5flY5VbppePYX9XehevbDykRH9PdCdvqt9TS5AOTiDide7h0qrkHjw==
+  dependencies:
+    "@octokit/auth-token" "^2.4.4"
+    "@octokit/graphql" "^4.5.8"
+    "@octokit/request" "^5.6.0"
+    "@octokit/request-error" "^2.0.5"
+    "@octokit/types" "^6.0.3"
+    before-after-hook "^2.2.0"
+    universal-user-agent "^6.0.0"
+
+"@octokit/endpoint@^6.0.1":
+  version "6.0.12"
+  resolved "https://registry.yarnpkg.com/@octokit/endpoint/-/endpoint-6.0.12.tgz#3b4d47a4b0e79b1027fb8d75d4221928b2d05658"
+  integrity sha512-lF3puPwkQWGfkMClXb4k/eUT/nZKQfxinRWJrdZaJO85Dqwo/G0yOC434Jr2ojwafWJMYqFGFa5ms4jJUgujdA==
+  dependencies:
+    "@octokit/types" "^6.0.3"
+    is-plain-object "^5.0.0"
+    universal-user-agent "^6.0.0"
+
+"@octokit/graphql@^4.5.8":
+  version "4.6.4"
+  resolved "https://registry.yarnpkg.com/@octokit/graphql/-/graphql-4.6.4.tgz#0c3f5bed440822182e972317122acb65d311a5ed"
+  integrity sha512-SWTdXsVheRmlotWNjKzPOb6Js6tjSqA2a8z9+glDJng0Aqjzti8MEWOtuT8ZSu6wHnci7LZNuarE87+WJBG4vg==
+  dependencies:
+    "@octokit/request" "^5.6.0"
+    "@octokit/types" "^6.0.3"
+    universal-user-agent "^6.0.0"
+
+"@octokit/openapi-types@^9.3.0":
+  version "9.3.0"
+  resolved "https://registry.yarnpkg.com/@octokit/openapi-types/-/openapi-types-9.3.0.tgz#160347858d727527901c6aae7f7d5c2414cc1f2e"
+  integrity sha512-oz60hhL+mDsiOWhEwrj5aWXTOMVtQgcvP+sRzX4C3cH7WOK9QSAoEtjWh0HdOf6V3qpdgAmUMxnQPluzDWR7Fw==
+
+"@octokit/plugin-paginate-rest@^2.6.2":
+  version "2.15.0"
+  resolved "https://registry.yarnpkg.com/@octokit/plugin-paginate-rest/-/plugin-paginate-rest-2.15.0.tgz#9c956c3710b2bd786eb3814eaf5a2b17392c150d"
+  integrity sha512-/vjcb0w6ggVRtsb8OJBcRR9oEm+fpdo8RJk45khaWw/W0c8rlB2TLCLyZt/knmC17NkX7T9XdyQeEY7OHLSV1g==
+  dependencies:
+    "@octokit/types" "^6.23.0"
+
+"@octokit/plugin-request-log@^1.0.2":
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/@octokit/plugin-request-log/-/plugin-request-log-1.0.4.tgz#5e50ed7083a613816b1e4a28aeec5fb7f1462e85"
+  integrity sha512-mLUsMkgP7K/cnFEw07kWqXGF5LKrOkD+lhCrKvPHXWDywAwuDUeDwWBpc69XK3pNX0uKiVt8g5z96PJ6z9xCFA==
+
+"@octokit/plugin-rest-endpoint-methods@5.6.0":
+  version "5.6.0"
+  resolved "https://registry.yarnpkg.com/@octokit/plugin-rest-endpoint-methods/-/plugin-rest-endpoint-methods-5.6.0.tgz#c28833b88d0f07bf94093405d02d43d73c7de99b"
+  integrity sha512-2G7lIPwjG9XnTlNhe/TRnpI8yS9K2l68W4RP/ki3wqw2+sVeTK8hItPxkqEI30VeH0UwnzpuksMU/yHxiVVctw==
+  dependencies:
+    "@octokit/types" "^6.23.0"
+    deprecation "^2.3.1"
+
+"@octokit/request-error@^2.0.5", "@octokit/request-error@^2.1.0":
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/@octokit/request-error/-/request-error-2.1.0.tgz#9e150357831bfc788d13a4fd4b1913d60c74d677"
+  integrity sha512-1VIvgXxs9WHSjicsRwq8PlR2LR2x6DwsJAaFgzdi0JfJoGSO8mYI/cHJQ+9FbN21aa+DrgNLnwObmyeSC8Rmpg==
+  dependencies:
+    "@octokit/types" "^6.0.3"
+    deprecation "^2.0.0"
+    once "^1.4.0"
+
+"@octokit/request@^5.6.0":
+  version "5.6.0"
+  resolved "https://registry.yarnpkg.com/@octokit/request/-/request-5.6.0.tgz#6084861b6e4fa21dc40c8e2a739ec5eff597e672"
+  integrity sha512-4cPp/N+NqmaGQwbh3vUsYqokQIzt7VjsgTYVXiwpUP2pxd5YiZB2XuTedbb0SPtv9XS7nzAKjAuQxmY8/aZkiA==
+  dependencies:
+    "@octokit/endpoint" "^6.0.1"
+    "@octokit/request-error" "^2.1.0"
+    "@octokit/types" "^6.16.1"
+    is-plain-object "^5.0.0"
+    node-fetch "^2.6.1"
+    universal-user-agent "^6.0.0"
+
+"@octokit/rest@^18.6.7":
+  version "18.8.0"
+  resolved "https://registry.yarnpkg.com/@octokit/rest/-/rest-18.8.0.tgz#ba24f7ba554f015a7ae2b7cc2aecef5386ddfea5"
+  integrity sha512-lsuNRhgzGnLMn/NmQTNCit/6jplFWiTUlPXhqN0zCMLwf2/9pseHzsnTW+Cjlp4bLMEJJNPa5JOzSLbSCOahKw==
+  dependencies:
+    "@octokit/core" "^3.5.0"
+    "@octokit/plugin-paginate-rest" "^2.6.2"
+    "@octokit/plugin-request-log" "^1.0.2"
+    "@octokit/plugin-rest-endpoint-methods" "5.6.0"
+
+"@octokit/types@^6.0.3", "@octokit/types@^6.16.1", "@octokit/types@^6.23.0":
+  version "6.23.0"
+  resolved "https://registry.yarnpkg.com/@octokit/types/-/types-6.23.0.tgz#b39f242b20036e89fa8f34f7962b4e9b7ff8f65b"
+  integrity sha512-eG3clC31GSS7K3oBK6C6o7wyXPrkP+mu++eus8CSZdpRytJ5PNszYxudOQ0spWZQ3S9KAtoTG6v1WK5prJcJrA==
+  dependencies:
+    "@octokit/openapi-types" "^9.3.0"
+
 "@peculiar/asn1-schema@^2.0.27", "@peculiar/asn1-schema@^2.0.32":
   version "2.0.37"
   resolved "https://registry.yarnpkg.com/@peculiar/asn1-schema/-/asn1-schema-2.0.37.tgz#700476512ab903d809f64a3040fb1b2fe6fb6d4b"
@@ -1352,6 +1453,11 @@
     tslib "^2.2.0"
     webcrypto-core "^1.2.0"
 
+"@sentry/types@^6.10.0":
+  version "6.10.0"
+  resolved "https://registry.yarnpkg.com/@sentry/types/-/types-6.10.0.tgz#6b1f44e5ed4dbc2710bead24d1b32fb08daf04e1"
+  integrity sha512-M7s0JFgG7/6/yNVYoPUbxzaXDhnzyIQYRRJJKRaTD77YO4MHvi4Ke8alBWqD5fer0cPIfcSkBqa9BLdqRqcMWw==
+
 "@sinonjs/commons@^1.7.0":
   version "1.8.3"
   resolved "https://registry.yarnpkg.com/@sinonjs/commons/-/commons-1.8.3.tgz#3802ddd21a50a949b6721ddd72da36e67e7f1b2d"
@@ -1850,6 +1956,17 @@ ajv@^8.0.1:
     require-from-string "^2.0.2"
     uri-js "^4.2.2"
 
+"allchange@github:matrix-org/allchange":
+  version "0.0.1"
+  resolved "https://codeload.github.com/matrix-org/allchange/tar.gz/56b37b06339a3ac3fe771f3ec3d0bff798df8dab"
+  dependencies:
+    "@octokit/rest" "^18.6.7"
+    cli-color "^2.0.0"
+    js-yaml "^4.1.0"
+    loglevel "^1.7.1"
+    semver "^7.3.5"
+    yargs "^17.0.1"
+
 another-json@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/another-json/-/another-json-0.2.0.tgz#b5f4019c973b6dd5c6506a2d93469cb6d32aeedc"
@@ -1867,6 +1984,11 @@ ansi-escapes@^4.2.1:
   dependencies:
     type-fest "^0.21.3"
 
+ansi-regex@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-2.1.1.tgz#c3b33ab5ee360d86e0e628f0468ae7ef27d654df"
+  integrity sha1-w7M6te42DYbg5ijwRorn7yfWVN8=
+
 ansi-regex@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-4.1.0.tgz#8b9f8f08cf1acb843756a839ca8c7e3168c51997"
@@ -1914,6 +2036,11 @@ argparse@^1.0.7:
   dependencies:
     sprintf-js "~1.0.2"
 
+argparse@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/argparse/-/argparse-2.0.1.tgz#246f50f3ca78a3240f6c997e8a9bd1eac49e4b38"
+  integrity sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==
+
 arr-diff@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/arr-diff/-/arr-diff-4.0.0.tgz#d6461074febfec71e7e15235761a329a5dc7c520"
@@ -2206,6 +2333,11 @@ bcrypt-pbkdf@^1.0.0:
   dependencies:
     tweetnacl "^0.14.3"
 
+before-after-hook@^2.2.0:
+  version "2.2.2"
+  resolved "https://registry.yarnpkg.com/before-after-hook/-/before-after-hook-2.2.2.tgz#a6e8ca41028d90ee2c24222f201c90956091613e"
+  integrity sha512-3pZEU3NT5BFUo/AD5ERPWOgQOCZITni6iavr5AUw5AUwQjMlI0kzu5btnyD39AF0gUEsDPwJT+oY1ORBJijPjQ==
+
 binary-extensions@^1.0.0:
   version "1.13.1"
   resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-1.13.1.tgz#598afe54755b2868a5330d2aff9d4ebb53209b65"
@@ -2506,6 +2638,18 @@ classnames@*, classnames@^2.2.6:
   resolved "https://registry.yarnpkg.com/classnames/-/classnames-2.3.1.tgz#dfcfa3891e306ec1dad105d0e88f4417b8535e8e"
   integrity sha512-OlQdbZ7gLfGarSqxesMesDa5uz7KFbID8Kpq/SxIoNGDqY8lSYs0D+hhtBXhcdB3rcbXArFr7vlHheLk1voeNA==
 
+cli-color@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/cli-color/-/cli-color-2.0.0.tgz#11ecfb58a79278cf6035a60c54e338f9d837897c"
+  integrity sha512-a0VZ8LeraW0jTuCkuAGMNufareGHhyZU9z8OGsW0gXd1hZGi1SRuNRXdbGkraBBKnhyUhyebFWnRbp+dIn0f0A==
+  dependencies:
+    ansi-regex "^2.1.1"
+    d "^1.0.1"
+    es5-ext "^0.10.51"
+    es6-iterator "^2.0.3"
+    memoizee "^0.4.14"
+    timers-ext "^0.1.7"
+
 cliui@^5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/cliui/-/cliui-5.0.0.tgz#deefcfdb2e800784aa34f46fa08e06851c7bbbc5"
@@ -2524,6 +2668,15 @@ cliui@^6.0.0:
     strip-ansi "^6.0.0"
     wrap-ansi "^6.2.0"
 
+cliui@^7.0.2:
+  version "7.0.4"
+  resolved "https://registry.yarnpkg.com/cliui/-/cliui-7.0.4.tgz#a0265ee655476fc807aea9df3df8df7783808b4f"
+  integrity sha512-OcRE68cOsVMXp1Yvonl/fzkQOyjLSu/8bhPDfQt0e0/Eb283TKP20Fs2MqoPsr9SwA595rRCA+QMzYc9nBP+JQ==
+  dependencies:
+    string-width "^4.2.0"
+    strip-ansi "^6.0.0"
+    wrap-ansi "^7.0.0"
+
 clone-deep@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/clone-deep/-/clone-deep-4.0.1.tgz#c19fd9bdbbf85942b4fd979c84dcf7d5f07c2387"
@@ -2788,6 +2941,14 @@ csstype@^3.0.2:
   resolved "https://registry.yarnpkg.com/csstype/-/csstype-3.0.8.tgz#d2266a792729fb227cd216fb572f43728e1ad340"
   integrity sha512-jXKhWqXPmlUeoQnF/EhTtTl4C9SnrxSH/jZUih3jmO6lBKr99rP3/+FmrMj4EFpOXzMtXHAZkd3x0E6h6Fgflw==
 
+d@1, d@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/d/-/d-1.0.1.tgz#8698095372d58dbee346ffd0c7093f99f8f9eb5a"
+  integrity sha512-m62ShEObQ39CfralilEQRjH6oAMtNCV1xJyEx5LpRYUVN+EviphDgUc/F3hnYbADmkiNs67Y+3ylmlG7Lnu+FA==
+  dependencies:
+    es5-ext "^0.10.50"
+    type "^1.0.1"
+
 dashdash@^1.12.0:
   version "1.14.1"
   resolved "https://registry.yarnpkg.com/dashdash/-/dashdash-1.14.1.tgz#853cfa0f7cbe2fed5de20326b8dd581035f6e2f0"
@@ -2895,6 +3056,11 @@ delayed-stream@~1.0.0:
   resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
   integrity sha1-3zrhmayt+31ECqrgsp4icrJOxhk=
 
+deprecation@^2.0.0, deprecation@^2.3.1:
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/deprecation/-/deprecation-2.3.1.tgz#6368cbdb40abf3373b525ac87e4a260c3a700919"
+  integrity sha512-xmHIy4F3scKVwMsQ4WnVaS8bHOx0DmVwRywosKhaILI0ywMDWPtBSku2HNxRvF7jtwDRsoEwYQSfbxj8b7RlJQ==
+
 detect-newline@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/detect-newline/-/detect-newline-3.1.0.tgz#576f5dfc63ae1a192ff192d8ad3af6308991b651"
@@ -3191,6 +3357,42 @@ es-to-primitive@^1.2.1:
     is-date-object "^1.0.1"
     is-symbol "^1.0.2"
 
+es5-ext@^0.10.35, es5-ext@^0.10.46, es5-ext@^0.10.50, es5-ext@^0.10.51, es5-ext@^0.10.53, es5-ext@~0.10.14, es5-ext@~0.10.2, es5-ext@~0.10.46:
+  version "0.10.53"
+  resolved "https://registry.yarnpkg.com/es5-ext/-/es5-ext-0.10.53.tgz#93c5a3acfdbef275220ad72644ad02ee18368de1"
+  integrity sha512-Xs2Stw6NiNHWypzRTY1MtaG/uJlwCk8kH81920ma8mvN8Xq1gsfhZvpkImLQArw8AHnv8MT2I45J3c0R8slE+Q==
+  dependencies:
+    es6-iterator "~2.0.3"
+    es6-symbol "~3.1.3"
+    next-tick "~1.0.0"
+
+es6-iterator@^2.0.3, es6-iterator@~2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/es6-iterator/-/es6-iterator-2.0.3.tgz#a7de889141a05a94b0854403b2d0a0fbfa98f3b7"
+  integrity sha1-p96IkUGgWpSwhUQDstCg+/qY87c=
+  dependencies:
+    d "1"
+    es5-ext "^0.10.35"
+    es6-symbol "^3.1.1"
+
+es6-symbol@^3.1.1, es6-symbol@~3.1.3:
+  version "3.1.3"
+  resolved "https://registry.yarnpkg.com/es6-symbol/-/es6-symbol-3.1.3.tgz#bad5d3c1bcdac28269f4cb331e431c78ac705d18"
+  integrity sha512-NJ6Yn3FuDinBaBRWl/q5X/s4koRHBrgKAu+yGI6JCBeiu3qrcbJhwT2GeR/EXVfylRk8dpQVJoLEFhK+Mu31NA==
+  dependencies:
+    d "^1.0.1"
+    ext "^1.1.2"
+
+es6-weak-map@^2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/es6-weak-map/-/es6-weak-map-2.0.3.tgz#b6da1f16cc2cc0d9be43e6bdbfc5e7dfcdf31d53"
+  integrity sha512-p5um32HOTO1kP+w7PRnB+5lQ43Z6muuMuIMffvDN8ZB4GcnjLBV6zGStpbASIMk4DCAvEaamhe2zhyCb/QXXsA==
+  dependencies:
+    d "1"
+    es5-ext "^0.10.46"
+    es6-iterator "^2.0.3"
+    es6-symbol "^3.1.1"
+
 escalade@^3.1.1:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/escalade/-/escalade-3.1.1.tgz#d8cfdc7000965c5a0174b4a82eaa5c0552742e40"
@@ -3383,6 +3585,14 @@ esutils@^2.0.2:
   resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.3.tgz#74d2eb4de0b8da1293711910d50775b9b710ef64"
   integrity sha512-kVscqXk4OCp68SZ0dkgEKVi6/8ij300KBWTJq32P/dYeWTSwK41WyTxalN1eRmA5Z9UU/LX9D7FWSmV9SAYx6g==
 
+event-emitter@^0.3.5:
+  version "0.3.5"
+  resolved "https://registry.yarnpkg.com/event-emitter/-/event-emitter-0.3.5.tgz#df8c69eef1647923c7157b9ce83840610b02cc39"
+  integrity sha1-34xp7vFkeSPHFXuc6DhAYQsCzDk=
+  dependencies:
+    d "1"
+    es5-ext "~0.10.14"
+
 events@^3.2.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/events/-/events-3.3.0.tgz#31a95ad0a924e2d2c419a813aeb2c4e878ea7400"
@@ -3478,6 +3688,13 @@ expect@^26.6.2:
     jest-message-util "^26.6.2"
     jest-regex-util "^26.0.0"
 
+ext@^1.1.2:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/ext/-/ext-1.4.0.tgz#89ae7a07158f79d35517882904324077e4379244"
+  integrity sha512-Key5NIsUxdqKg3vIsdw9dSuXpPCQ297y6wBjL30edxwPgt2E44WcWBZey/ZvUc6sERLTxKdyCu4gZFmUbk1Q7A==
+  dependencies:
+    type "^2.0.0"
+
 extend-shallow@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/extend-shallow/-/extend-shallow-2.0.1.tgz#51af7d614ad9a9f610ea1bafbb989d6b1c56890f"
@@ -3601,6 +3818,11 @@ fbjs@^0.8.4:
     setimmediate "^1.0.5"
     ua-parser-js "^0.7.18"
 
+fflate@^0.4.1:
+  version "0.4.8"
+  resolved "https://registry.yarnpkg.com/fflate/-/fflate-0.4.8.tgz#f90b82aefbd8ac174213abb338bd7ef848f0f5ae"
+  integrity sha512-FJqqoDBR00Mdj9ppamLa/Y7vxm+PRmNWA67N846RvsoYVMKB4q3y/de5PA7gUmRMYK/8CMz2GDZQmCRN1wBcWA==
+
 file-entry-cache@^6.0.0, file-entry-cache@^6.0.1:
   version "6.0.1"
   resolved "https://registry.yarnpkg.com/file-entry-cache/-/file-entry-cache-6.0.1.tgz#211b2dd9659cb0394b073e7323ac3c933d522027"
@@ -3783,7 +4005,7 @@ gensync@^1.0.0-beta.2:
   resolved "https://registry.yarnpkg.com/gensync/-/gensync-1.0.0-beta.2.tgz#32a6ee76c3d7f52d46b2b1ae5d93fea8580a25e0"
   integrity sha512-3hN7NaskYvMDLQY55gnW3NQ+mesEAepTqlg+VEbj7zzqEMBVNhzcGYYeqFo/TlYz6eQiFcp1HcsCZO+nGgS8zg==
 
-get-caller-file@^2.0.1:
+get-caller-file@^2.0.1, get-caller-file@^2.0.5:
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-2.0.5.tgz#4f94412a82db32f36e3b0b9741f8a97feb031f7e"
   integrity sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg==
@@ -4502,6 +4724,11 @@ is-potential-custom-element-name@^1.0.1:
   resolved "https://registry.yarnpkg.com/is-potential-custom-element-name/-/is-potential-custom-element-name-1.0.1.tgz#171ed6f19e3ac554394edf78caa05784a45bebb5"
   integrity sha512-bCYeRA2rVibKZd+s2625gGnGF/t7DSqDs4dP7CrLA1m7jKWz6pps0LpYLJN8Q64HtmPKJ1hrN3nzPNKFEKOUiQ==
 
+is-promise@^2.2.2:
+  version "2.2.2"
+  resolved "https://registry.yarnpkg.com/is-promise/-/is-promise-2.2.2.tgz#39ab959ccbf9a774cf079f7b40c7a26f763135f1"
+  integrity sha512-+lP4/6lKUBfQjZ2pdxThZvLUAafmZb8OAxFb8XXtiQmS35INgr85hdOGoEs124ez1FCnZJt6jau/T+alh58QFQ==
+
 is-regex@^1.0.3, is-regex@^1.0.5, is-regex@^1.1.2, is-regex@^1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/is-regex/-/is-regex-1.1.3.tgz#d029f9aff6448b93ebbe3f33dac71511fdcbef9f"
@@ -5122,6 +5349,13 @@ js-yaml@^3.13.1:
     argparse "^1.0.7"
     esprima "^4.0.0"
 
+js-yaml@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-4.1.0.tgz#c1fb65f8f5017901cdd2c951864ba18458a10602"
+  integrity sha512-wpxZs9NoxZaJESJGIZTyDEaYpl0FKSA+FB9aJiyemKhMwkxQg63h4T1KJgUGHpTqPDNRcmmYLugrRjJlBtWvRA==
+  dependencies:
+    argparse "^2.0.1"
+
 jsbn@~0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/jsbn/-/jsbn-0.1.1.tgz#a5e654c2e5a2deb5f201d96cefbca80c0ef2f513"
@@ -5396,6 +5630,13 @@ lru-cache@^6.0.0:
   dependencies:
     yallist "^4.0.0"
 
+lru-queue@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/lru-queue/-/lru-queue-0.1.0.tgz#2738bd9f0d3cf4f84490c5736c48699ac632cda3"
+  integrity sha1-Jzi9nw089PhEkMVzbEhpmsYyzaM=
+  dependencies:
+    es5-ext "~0.10.2"
+
 make-dir@^2.0.0, make-dir@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/make-dir/-/make-dir-2.1.0.tgz#5f0310e18b8be898cc07009295a30ae41e91e6f5"
@@ -5528,6 +5769,20 @@ memoize-one@^5.1.1:
   resolved "https://registry.yarnpkg.com/memoize-one/-/memoize-one-5.2.1.tgz#8337aa3c4335581839ec01c3d594090cebe8f00e"
   integrity sha512-zYiwtZUcYyXKo/np96AGZAckk+FWWsUdJ3cHGGmld7+AhvcWmQyGCYUh1hc4Q/pkOhb65dQR/pqCyK0cOaHz4Q==
 
+memoizee@^0.4.14:
+  version "0.4.15"
+  resolved "https://registry.yarnpkg.com/memoizee/-/memoizee-0.4.15.tgz#e6f3d2da863f318d02225391829a6c5956555b72"
+  integrity sha512-UBWmJpLZd5STPm7PMUlOw/TSy972M+z8gcyQ5veOnSDRREz/0bmpyTfKt3/51DhEBqCZQn1udM/5flcSPYhkdQ==
+  dependencies:
+    d "^1.0.1"
+    es5-ext "^0.10.53"
+    es6-weak-map "^2.0.3"
+    event-emitter "^0.3.5"
+    is-promise "^2.2.2"
+    lru-queue "^0.1.0"
+    next-tick "^1.1.0"
+    timers-ext "^0.1.7"
+
 meow@^9.0.0:
   version "9.0.0"
   resolved "https://registry.yarnpkg.com/meow/-/meow-9.0.0.tgz#cd9510bc5cac9dee7d03c73ee1f9ad959f4ea364"
@@ -5701,12 +5956,22 @@ nearley@^2.7.10:
     railroad-diagrams "^1.0.0"
     randexp "0.4.6"
 
+next-tick@1, next-tick@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/next-tick/-/next-tick-1.1.0.tgz#1836ee30ad56d67ef281b22bd199f709449b35eb"
+  integrity sha512-CXdUiJembsNjuToQvxayPZF9Vqht7hewsvy2sOWafLvi2awflj9mOC6bHIg50orX8IJvWKY9wYQ/zB2kogPslQ==
+
+next-tick@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/next-tick/-/next-tick-1.0.0.tgz#ca86d1fe8828169b0120208e3dc8424b9db8342c"
+  integrity sha1-yobR/ogoFpsBICCOPchCS524NCw=
+
 nice-try@^1.0.4:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/nice-try/-/nice-try-1.0.5.tgz#a3378a7696ce7d223e88fc9b764bd7ef1089e366"
   integrity sha512-1nh45deeb5olNY7eX82BkPO7SSxR5SSYJiPTrTdFUVYwAl8CKMA5N9PjTYkHiRjisVcxcQ1HXdLhx2qxxJzLNQ==
 
-node-fetch@2.6.1:
+node-fetch@2.6.1, node-fetch@^2.6.1:
   version "2.6.1"
   resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.6.1.tgz#045bd323631f76ed2e2b55573394416b639a0052"
   integrity sha512-V4aYg89jEoVRxRb2fJdAg8FHvI7cEyYdVAh94HH0UIK8oJxUfkjlDQN9RbMx+bEjP7+ggMiFRprSti032Oipxw==
@@ -6249,6 +6514,13 @@ postcss@^8.0.2:
     nanoid "^3.1.23"
     source-map-js "^0.6.2"
 
+posthog-js@1.12.2:
+  version "1.12.2"
+  resolved "https://registry.yarnpkg.com/posthog-js/-/posthog-js-1.12.2.tgz#ff76e26634067e003f8af7df654d7ea0e647d946"
+  integrity sha512-I0d6c+Yu2f91PFidz65AIkkqZM219EY9Z1wlbTkW5Zqfq5oXqogBMKS8BaDBOrMc46LjLX7IH67ytCcBFRo1uw==
+  dependencies:
+    fflate "^0.4.1"
+
 prelude-ls@^1.2.1:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.2.1.tgz#debc6489d7a6e6b0e7611888cec880337d316396"
@@ -6829,6 +7101,11 @@ rimraf@^3.0.0, rimraf@^3.0.2:
   dependencies:
     glob "^7.1.3"
 
+rrweb-snapshot@1.1.7:
+  version "1.1.7"
+  resolved "https://registry.yarnpkg.com/rrweb-snapshot/-/rrweb-snapshot-1.1.7.tgz#92a3b47b1112a1b566c2fae2edb02fa48a6f6653"
+  integrity sha512-+f2kCCvIQ1hbEeCWnV7mPVPDEdWEExqwcYqMd/r1nfK52QE7qU52jefUOyTe85Vy67rZGqWnfK/B25e/OTSgYg==
+
 rst-selector-parser@^2.2.3:
   version "2.2.3"
   resolved "https://registry.yarnpkg.com/rst-selector-parser/-/rst-selector-parser-2.2.3.tgz#81b230ea2fcc6066c89e3472de794285d9b03d91"
@@ -7498,6 +7775,14 @@ throat@^5.0.0:
   resolved "https://registry.yarnpkg.com/throat/-/throat-5.0.0.tgz#c5199235803aad18754a667d659b5e72ce16764b"
   integrity sha512-fcwX4mndzpLQKBS1DVYhGAcYaYt7vsHNIvQV+WXMvnow5cgjPphq5CaayLaGsjRdSCKZFNGt7/GYAuXaNOiYCA==
 
+timers-ext@^0.1.7:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/timers-ext/-/timers-ext-0.1.7.tgz#6f57ad8578e07a3fb9f91d9387d65647555e25c6"
+  integrity sha512-b85NUNzTSdodShTIbky6ZF02e8STtVVfD+fu4aXXShEELpozH+bCpJLYMPZbsABN2wDH7fJpqIoXxJpzbf0NqQ==
+  dependencies:
+    es5-ext "~0.10.46"
+    next-tick "1"
+
 tiny-invariant@^1.0.6:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/tiny-invariant/-/tiny-invariant-1.1.0.tgz#634c5f8efdc27714b7f386c35e6760991d230875"
@@ -7657,6 +7942,16 @@ type-fest@^0.8.1:
   resolved "https://registry.yarnpkg.com/type-fest/-/type-fest-0.8.1.tgz#09e249ebde851d3b1e48d27c105444667f17b83d"
   integrity sha512-4dbzIzqvjtgiM5rw1k5rEHtBANKmdudhGyBEajN01fEyhaAIhsoKNy6y7+IN93IfpFtwY9iqi7kD+xwKhQsNJA==
 
+type@^1.0.1:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/type/-/type-1.2.0.tgz#848dd7698dafa3e54a6c479e759c4bc3f18847a0"
+  integrity sha512-+5nt5AAniqsCnu2cEQQdpzCAh33kVx8n0VoFidKpB1dVVLAN/F+bgVOqOJqOnEnrhp222clB5p3vUlD+1QAnfg==
+
+type@^2.0.0:
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/type/-/type-2.5.0.tgz#0a2e78c2e77907b252abe5f298c1b01c63f0db3d"
+  integrity sha512-180WMDQaIMm3+7hGXWf12GtdniDEy7nYcyFMKJn/eZz/6tSLXrUN9V0wKSbMjej0I1WHWbpREDEKHtqPQa9NNw==
+
 typedarray-to-buffer@^3.1.5:
   version "3.1.5"
   resolved "https://registry.yarnpkg.com/typedarray-to-buffer/-/typedarray-to-buffer-3.1.5.tgz#a97ee7a9ff42691b9f783ff1bc5112fe3fca9080"
@@ -7753,6 +8048,11 @@ unist-util-stringify-position@^2.0.0:
   dependencies:
     "@types/unist" "^2.0.2"
 
+universal-user-agent@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/universal-user-agent/-/universal-user-agent-6.0.0.tgz#3381f8503b251c0d9cd21bc1de939ec9df5480ee"
+  integrity sha512-isyNax3wXoKaulPDZWHQqbmIx1k2tb9fb3GGDBRxCscfYV2Ch7WxPArBsFEG8s/safwXTT7H4QGhaIkTp9447w==
+
 universalify@^0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/universalify/-/universalify-0.1.2.tgz#b646f69be3942dabcecc9d6639c80dc105efaa66"
@@ -8056,6 +8356,15 @@ wrap-ansi@^6.2.0:
     string-width "^4.1.0"
     strip-ansi "^6.0.0"
 
+wrap-ansi@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-7.0.0.tgz#67e145cff510a6a6984bdf1152911d69d2eb9e43"
+  integrity sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==
+  dependencies:
+    ansi-styles "^4.0.0"
+    string-width "^4.1.0"
+    strip-ansi "^6.0.0"
+
 wrappy@1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"
@@ -8091,6 +8400,11 @@ y18n@^4.0.0:
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-4.0.3.tgz#b5f259c82cd6e336921efd7bfd8bf560de9eeedf"
   integrity sha512-JKhqTOwSrqNA1NY5lSztJ1GrBiUodLMmIZuLiDaMRJ+itFd+ABVE8XBjOvIWL+rSqNDC74LCSFmlb/U4UZ4hJQ==
 
+y18n@^5.0.5:
+  version "5.0.8"
+  resolved "https://registry.yarnpkg.com/y18n/-/y18n-5.0.8.tgz#7f4934d0f7ca8c56f95314939ddcd2dd91ce1d55"
+  integrity sha512-0pfFzegeDWJHJIAmTLRP2DwHjdF5s7jo9tuztdQxAhINCdvS+3nGINqPd00AphqJR/0LhANUS6/+7SCb98YOfA==
+
 yallist@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-4.0.0.tgz#9bb92790d9c0effec63be73519e11a35019a3a72"
@@ -8117,7 +8431,7 @@ yargs-parser@^18.1.2:
     camelcase "^5.0.0"
     decamelize "^1.2.0"
 
-yargs-parser@^20.2.3:
+yargs-parser@^20.2.2, yargs-parser@^20.2.3:
   version "20.2.9"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-20.2.9.tgz#2eb7dc3b0289718fc295f362753845c41a0c94ee"
   integrity sha512-y11nGElTIV+CT3Zv9t7VKl+Q3hTQoT9a1Qzezhhl6Rp21gJ/IVTW7Z3y9EWXhuUBC2Shnf+DX0antecpAwSP8w==
@@ -8155,6 +8469,19 @@ yargs@^15.4.1:
     y18n "^4.0.0"
     yargs-parser "^18.1.2"
 
+yargs@^17.0.1:
+  version "17.0.1"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-17.0.1.tgz#6a1ced4ed5ee0b388010ba9fd67af83b9362e0bb"
+  integrity sha512-xBBulfCc8Y6gLFcrPvtqKz9hz8SO0l1Ni8GgDekvBX2ro0HRQImDGnikfc33cgzcYUSncapnNcZDjVFIH3f6KQ==
+  dependencies:
+    cliui "^7.0.2"
+    escalade "^3.1.1"
+    get-caller-file "^2.0.5"
+    require-directory "^2.1.1"
+    string-width "^4.2.0"
+    y18n "^5.0.5"
+    yargs-parser "^20.2.2"
+
 zwitch@^1.0.0:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/zwitch/-/zwitch-1.0.5.tgz#d11d7381ffed16b742f6af7b3f223d5cd9fe9920"