diff --git a/.eslintrc.cjs b/.eslintrc.cjs
index 067c5246..2cd63d63 100644
--- a/.eslintrc.cjs
+++ b/.eslintrc.cjs
@@ -8,7 +8,7 @@ Please see LICENSE in the repository root for full details.
 `;
 
 module.exports = {
-  plugins: ["matrix-org", "rxjs"],
+  plugins: ["matrix-org", "rxjs", "jsdoc"],
   extends: [
     "plugin:matrix-org/react",
     "plugin:matrix-org/a11y",
@@ -26,6 +26,13 @@ module.exports = {
     node: true,
   },
   rules: {
+    "jsdoc/no-types": "error",
+    "jsdoc/empty-tags": "error",
+    "jsdoc/check-property-names": "error",
+    "jsdoc/check-values": "error",
+    "jsdoc/check-param-names": "warn",
+    // "jsdoc/require-param": "warn",
+    "jsdoc/require-param-description": "warn",
     "matrix-org/require-copyright-header": ["error", COPYRIGHT_HEADER],
     "jsx-a11y/media-has-caption": "off",
     "react/display-name": "error",
@@ -75,6 +82,17 @@ module.exports = {
         "no-console": ["error"],
       },
     },
+    {
+      files: ["**/*.test.ts", "**/*.test.tsx", "**/test.ts", "**/test.tsx", "**/test-**"],
+      rules: {
+        "jsdoc/no-types": "off",
+        "jsdoc/empty-tags": "off",
+        "jsdoc/check-property-names": "off",
+        "jsdoc/check-values": "off",
+        "jsdoc/check-param-names": "off",
+        "jsdoc/require-param-description": "off",
+      }
+    }
   ],
   settings: {
     react: {
diff --git a/package.json b/package.json
index c67c2e4c..e5b57444 100644
--- a/package.json
+++ b/package.json
@@ -18,11 +18,12 @@
     "serve": "vite preview",
     "prettier:check": "prettier -c .",
     "prettier:format": "prettier -w .",
-    "lint": "yarn lint:types && yarn lint:eslint && yarn lint:knip",
+    "lint": "yarn lint:types && yarn lint:eslint && yarn lint:knip && yarn lint:tsdoc",
     "lint:eslint": "eslint --max-warnings 0 src playwright",
     "lint:eslint-fix": "eslint --max-warnings 0 src playwright --fix",
     "lint:knip": "knip",
     "lint:types": "tsc",
+    "lint:tsdoc": "eslint --ext .ts,.tsx src",
     "i18n": "i18next",
     "i18n:check": "i18next --fail-on-warnings --fail-on-update",
     "test": "vitest",
@@ -95,6 +96,7 @@
     "eslint-config-prettier": "^10.0.0",
     "eslint-plugin-deprecate": "^0.8.2",
     "eslint-plugin-import": "^2.26.0",
+    "eslint-plugin-jsdoc": "^61.5.0",
     "eslint-plugin-jsx-a11y": "^6.5.1",
     "eslint-plugin-matrix-org": "2.1.0",
     "eslint-plugin-react": "^7.29.4",
diff --git a/playwright/fixtures/widget-user.ts b/playwright/fixtures/widget-user.ts
index 6236928c..f1f738b7 100644
--- a/playwright/fixtures/widget-user.ts
+++ b/playwright/fixtures/widget-user.ts
@@ -67,7 +67,6 @@ const CONFIG_JSON = {
 
 /**
  * Set the Element Call URL in the dev tool settings using `window.mxSettingsStore` via `page.evaluate`.
- * @param page
  */
 const setDevToolElementCallDevUrl = process.env.USE_DOCKER
   ? async (page: Page): Promise<void> => {
diff --git a/src/e2ee/sharedKeyManagement.ts b/src/e2ee/sharedKeyManagement.ts
index c68ba453..18d007e2 100644
--- a/src/e2ee/sharedKeyManagement.ts
+++ b/src/e2ee/sharedKeyManagement.ts
@@ -34,8 +34,8 @@ const getRoomSharedKeyLocalStorageKey = (roomId: string): string =>
   `room-shared-key-${roomId}`;
 
 /**
- * An upto-date shared key for the room. Either from local storage or the value from `setInitialValue`.
- * @param roomId
+ * An up-to-date shared key for the room. Either from local storage or the value from `setInitialValue`.
+ * @param roomId The room ID we want the shared key for.
  * @param setInitialValue The value we get from the URL. The hook will overwrite the local storage value with this.
  * @returns [roomSharedKey, setRoomSharedKey] like a react useState hook.
  */
diff --git a/src/livekit/MatrixAudioRenderer.tsx b/src/livekit/MatrixAudioRenderer.tsx
index 5b1149e9..741529b8 100644
--- a/src/livekit/MatrixAudioRenderer.tsx
+++ b/src/livekit/MatrixAudioRenderer.tsx
@@ -166,7 +166,11 @@ interface StereoPanAudioTrackProps {
  * It main purpose is to remount the AudioTrack component when switching from
  * audioContext to normal audio playback.
  * As of now the AudioTrack component does not support adding audio nodes while being mounted.
- * @param param0
+ * @param props The component props
+ * @param props.trackRef The track reference
+ * @param props.muted If the track should be muted
+ * @param props.audioContext The audio context to use
+ * @param props.audioNodes The audio nodes to use
  * @returns
  */
 function AudioTrackWithAudioNodes({
diff --git a/src/livekit/openIDSFU.ts b/src/livekit/openIDSFU.ts
index b3c07397..34c98a88 100644
--- a/src/livekit/openIDSFU.ts
+++ b/src/livekit/openIDSFU.ts
@@ -63,9 +63,9 @@ export type OpenIDClientParts = Pick<
  * Gets a bearer token from the homeserver and then use it to authenticate
  * to the matrix RTC backend in order to get acces to the SFU.
  * It has built-in retry for calls to the homeserver with a backoff policy.
- * @param client
- * @param serviceUrl
- * @param matrixRoomId
+ * @param client The Matrix client
+ * @param serviceUrl The URL of the livekit SFU service
+ * @param matrixRoomId The Matrix room ID for which to get the SFU config
  * @returns Object containing the token information
  * @throws FailToGetOpenIdToken
  */
diff --git a/src/reactions/ReactionsReader.ts b/src/reactions/ReactionsReader.ts
index 74b47c77..7ce59812 100644
--- a/src/reactions/ReactionsReader.ts
+++ b/src/reactions/ReactionsReader.ts
@@ -135,10 +135,10 @@ export class ReactionsReader {
   }
 
   /**
-   * Fetchest any hand wave reactions by the given sender on the given
+   * Fetches any hand wave reactions by the given sender on the given
    * membership event.
-   * @param membershipEventId
-   * @param expectedSender
+   * @param membershipEventId - The user membership event id.
+   * @param expectedSender - The expected sender of the reaction.
    * @returns A MatrixEvent if one was found.
    */
   private getLastReactionEvent(
diff --git a/src/room/useLoadGroupCall.ts b/src/room/useLoadGroupCall.ts
index ab6ccf64..2cd0d40b 100644
--- a/src/room/useLoadGroupCall.ts
+++ b/src/room/useLoadGroupCall.ts
@@ -106,22 +106,18 @@ async function joinRoomAfterInvite(
 
 export class CallTerminatedMessage extends Error {
   /**
+   * Creates a new CallTerminatedMessage.
+   *
+   * @param icon The icon to display with the message
    * @param messageTitle The title of the call ended screen message (translated)
+   * @param messageBody The message explaining the kind of termination
+   * (kick, ban, knock reject, etc.) (translated)
+   * @param reason  The user-provided reason for the termination (kick/ban)
    */
   public constructor(
-    /**
-     * The icon to display with the message.
-     */
     public readonly icon: ComponentType<SVGAttributes<SVGElement>>,
     messageTitle: string,
-    /**
-     * The message explaining the kind of termination (kick, ban, knock reject,
-     * etc.) (translated)
-     */
     public readonly messageBody: string,
-    /**
-     * The user-provided reason for the termination (kick/ban)
-     */
     public readonly reason?: string,
   ) {
     super(messageTitle);
diff --git a/src/settings/rageshake.ts b/src/settings/rageshake.ts
index 6c1a0f61..26d0839b 100644
--- a/src/settings/rageshake.ts
+++ b/src/settings/rageshake.ts
@@ -99,7 +99,7 @@ class ConsoleLogger extends EventEmitter {
 
   /**
    * Returns the log lines to flush to disk and empties the internal log buffer
-   * @return {string} \n delimited log lines
+   * @return \n delimited log lines
    */
   public popLogs(): string {
     const logsToFlush = this.logs;
@@ -109,7 +109,7 @@ class ConsoleLogger extends EventEmitter {
 
   /**
    * Returns lines currently in the log buffer without removing them
-   * @return {string} \n delimited log lines
+   * @return \n delimited log lines
    */
   public peekLogs(): string {
     return this.logs;
@@ -139,7 +139,7 @@ class IndexedDBLogStore {
   }
 
   /**
-   * @return {Promise} Resolves when the store is ready.
+   * @return Resolves when the store is ready.
    */
   public async connect(): Promise<void> {
     const req = this.indexedDB.open("logs");
@@ -219,7 +219,7 @@ class IndexedDBLogStore {
    * This guarantees that we will always eventually do a flush when flush() is
    * called.
    *
-   * @return {Promise} Resolved when the logs have been flushed.
+   * @return Resolved when the logs have been flushed.
    */
   public flush = async (): Promise<void> => {
     // check if a flush() operation is ongoing
@@ -270,7 +270,7 @@ class IndexedDBLogStore {
    * returned are deleted at the same time, so this can be called at startup
    * to do house-keeping to keep the logs from growing too large.
    *
-   * @return {Promise<Object[]>} Resolves to an array of objects. The array is
+   * @return Resolves to an array of objects. The array is
    * sorted in time (oldest first) based on when the log file was created (the
    * log ID). The objects have said log ID in an "id" field and "lines" which
    * is a big string with all the new-line delimited logs.
@@ -421,12 +421,12 @@ class IndexedDBLogStore {
 
 /**
  * Helper method to collect results from a Cursor and promiseify it.
- * @param {ObjectStore|Index} store The store to perform openCursor on.
- * @param {IDBKeyRange=} keyRange Optional key range to apply on the cursor.
- * @param {Function} resultMapper A function which is repeatedly called with a
+ * @param store - The store to perform openCursor on.
+ * @param keyRange - Optional key range to apply on the cursor.
+ * @param resultMapper - A function which is repeatedly called with a
  * Cursor.
  * Return the data you want to keep.
- * @return {Promise<T[]>} Resolves to an array of whatever you returned from
+ * @return Resolves to an array of whatever you returned from
  * resultMapper.
  */
 async function selectQuery<T>(
@@ -464,9 +464,7 @@ declare global {
 /**
  * Configure rage shaking support for sending bug reports.
  * Modifies globals.
- * @param {boolean} setUpPersistence When true (default), the persistence will
- * be set up immediately for the logs.
- * @return {Promise} Resolves when set up.
+ * @return Resolves when set up.
  */
 export async function init(): Promise<void> {
   global.mx_rage_logger = new ConsoleLogger();
@@ -503,7 +501,7 @@ export async function init(): Promise<void> {
 /**
  * Try to start up the rageshake storage for logs. If not possible (client unsupported)
  * then this no-ops.
- * @return {Promise} Resolves when complete.
+ * @return Resolves when complete.
  */
 async function tryInitStorage(): Promise<void> {
   if (global.mx_rage_initStoragePromise) {
@@ -536,7 +534,7 @@ async function tryInitStorage(): Promise<void> {
 /**
  * Get a recent snapshot of the logs, ready for attaching to a bug report
  *
- * @return {LogEntry[]}  list of log data
+ * @return list of log data
  */
 export async function getLogsForReport(): Promise<LogEntry[]> {
   if (!global.mx_rage_logger) {
diff --git a/src/state/CallViewModel/CallNotificationLifecycle.ts b/src/state/CallViewModel/CallNotificationLifecycle.ts
index 2a0bf2f1..d90f35ba 100644
--- a/src/state/CallViewModel/CallNotificationLifecycle.ts
+++ b/src/state/CallViewModel/CallNotificationLifecycle.ts
@@ -81,7 +81,7 @@ export interface Props {
   localUser: { deviceId: string; userId: string };
 }
 /**
- * @returns {callPickupState$, autoLeave$}
+ * @returns two observables:
  * `callPickupState$` The current call pickup state of the call.
  *  - "unknown": The client has not yet sent the notification event. We don't know if it will because it first needs to send its own membership.
  *     Then we can conclude if we were the first one to join or not.
diff --git a/src/state/CallViewModel/localMember/LocalMember.ts b/src/state/CallViewModel/localMember/LocalMember.ts
index 6d28bc56..dc22db23 100644
--- a/src/state/CallViewModel/localMember/LocalMember.ts
+++ b/src/state/CallViewModel/localMember/LocalMember.ts
@@ -138,7 +138,16 @@ interface Props {
  * We want
  *  - a publisher
  *  -
- * @param param0
+ * @param props The properties required to create the local membership.
+ * @param props.scope The observable scope to use.
+ * @param props.connectionManager The connection manager to get connections from.
+ * @param props.createPublisherFactory Factory to create a publisher once we have a connection.
+ * @param props.joinMatrixRTC Callback to join the matrix RTC session once we have a transport.
+ * @param props.homeserverConnected The homeserver connected state.
+ * @param props.localTransport$ The local transport to use for publishing.
+ * @param props.logger The logger to use.
+ * @param props.muteStates The mute states for video and audio.
+ * @param props.matrixRTCSession The matrix RTC session to join.
  * @returns
  *  - publisher: The handle to create tracks and publish them to the room.
  *  - connected$: the current connection state. Including matrix server and livekit server connection. (only considering the livekit server we are using for our own media publication)
@@ -676,9 +685,11 @@ interface EnterRTCSessionOptions {
  *      - Delay events management
  *      - Handles retries (fails only after several attempts)
  *
- * @param rtcSession
- * @param transport
- * @param options
+ * @param rtcSession - The MatrixRTCSession to join.
+ * @param transport - The LivekitTransport to use for this session.
+ * @param options - Options for entering the RTC session.
+ * @param options.encryptMedia - Whether to encrypt media.
+ * @param options.matrixRTCMode - The Matrix RTC mode to use.
  * @throws If the widget could not send ElementWidgetActions.JoinCall action.
  */
 // Exported for unit testing
diff --git a/src/state/CallViewModel/localMember/Publisher.ts b/src/state/CallViewModel/localMember/Publisher.ts
index 3cb3bd04..27c53726 100644
--- a/src/state/CallViewModel/localMember/Publisher.ts
+++ b/src/state/CallViewModel/localMember/Publisher.ts
@@ -143,7 +143,7 @@ export class Publisher {
     this.logger.debug("createAndSetupTracks called");
     const lkRoom = this.connection.livekitRoom;
     // Observe mute state changes and update LiveKit microphone/camera states accordingly
-    this.observeMuteStates(this.scope);
+    this.observeMuteStates();
 
     // Check if audio and/or video is enabled. We only create tracks if enabled,
     // because it could prompt for permission, and we don't want to do that unnecessarily.
@@ -356,10 +356,9 @@ export class Publisher {
 
   /**
    * Observe changes in the mute states and update the LiveKit room accordingly.
-   * @param scope
    * @private
    */
-  private observeMuteStates(scope: ObservableScope): void {
+  private observeMuteStates(): void {
     const lkRoom = this.connection.livekitRoom;
     this.muteStates.audio.setHandler(async (enable) => {
       try {
diff --git a/src/state/CallViewModel/remoteMembers/Connection.ts b/src/state/CallViewModel/remoteMembers/Connection.ts
index cf92e2a6..41dfe665 100644
--- a/src/state/CallViewModel/remoteMembers/Connection.ts
+++ b/src/state/CallViewModel/remoteMembers/Connection.ts
@@ -218,7 +218,7 @@ export class Connection {
    *
    * @param opts - Connection options {@link ConnectionOpts}.
    *
-   * @param logger
+   * @param logger - The logger to use.
    */
   public constructor(opts: ConnectionOpts, logger: Logger) {
     this.logger = logger.getChild("[Connection]");
diff --git a/src/state/CallViewModel/remoteMembers/ConnectionFactory.ts b/src/state/CallViewModel/remoteMembers/ConnectionFactory.ts
index 48e5b8d8..c3364059 100644
--- a/src/state/CallViewModel/remoteMembers/ConnectionFactory.ts
+++ b/src/state/CallViewModel/remoteMembers/ConnectionFactory.ts
@@ -43,11 +43,11 @@ export class ECConnectionFactory implements ConnectionFactory {
    * @param client - The OpenID client parts for authentication, needed to get openID and JWT tokens.
    * @param devices - Used for video/audio out/in capture options.
    * @param processorState$ - Effects like background blur (only for publishing connection?)
-   * @param livekitKeyProvider
+   * @param livekitKeyProvider - Optional key provider for end-to-end encryption.
    * @param controlledAudioDevices - Option to indicate whether audio output device is controlled externally (native mobile app).
+   * @param livekitRoomFactory - Optional factory function (for testing) to create LivekitRoom instances. If not provided, a default factory is used.
    * @param echoCancellation - Whether to enable echo cancellation for audio capture.
    * @param noiseSuppression - Whether to enable noise suppression for audio capture.
-   * @param livekitRoomFactory - Optional factory function (for testing) to create LivekitRoom instances. If not provided, a default factory is used.
    */
   public constructor(
     private client: OpenIDClientParts,
diff --git a/src/state/CallViewModel/remoteMembers/ConnectionManager.ts b/src/state/CallViewModel/remoteMembers/ConnectionManager.ts
index c1b4af59..101e34ed 100644
--- a/src/state/CallViewModel/remoteMembers/ConnectionManager.ts
+++ b/src/state/CallViewModel/remoteMembers/ConnectionManager.ts
@@ -76,9 +76,11 @@ export interface IConnectionManager {
 
 /**
  * Crete a `ConnectionManager`
- * @param scope the observable scope used by this object.
- * @param connectionFactory used to create new connections.
- * @param _transportsSubscriptions$ A list of Behaviors each containing a LIST of LivekitTransport.
+ * @param props - Configuration object
+ * @param props.scope - The observable scope used by this object
+ * @param props.connectionFactory - Used to create new connections
+ * @param props.inputTransports$ - A list of Behaviors each containing a LIST of LivekitTransport.
+ * @param props.logger - The logger to use
  *   Each of these behaviors can be interpreted as subscribed list of transports.
  *
  *   Using `registerTransports` independent external modules can control what connections
diff --git a/src/useAudioContext.tsx b/src/useAudioContext.tsx
index 59334dda..4d08dde8 100644
--- a/src/useAudioContext.tsx
+++ b/src/useAudioContext.tsx
@@ -22,9 +22,12 @@ import * as controls from "./controls";
  * Play a sound though a given AudioContext. Will take
  * care of connecting the correct buffer and gating
  * through gain.
- * @param volume The volume to play at.
  * @param ctx The context to play through.
  * @param buffer The buffer to play.
+ * @param volume The volume to play at.
+ * @param stereoPan The stereo pan to apply.
+ * @param delayS Delay in seconds before starting playing.
+ * @param abort Optional AbortController that can be used to stop playback.
  * @returns A promise that resolves when the sound has finished playing.
  */
 async function playSound(
@@ -55,9 +58,11 @@ async function playSound(
  * Play a sound though a given AudioContext, looping until stopped. Will take
  * care of connecting the correct buffer and gating
  * through gain.
- * @param volume The volume to play at.
  * @param ctx The context to play through.
  * @param buffer The buffer to play.
+ * @param volume The volume to play at.
+ * @param stereoPan The stereo pan to apply.
+ * @param delayS Delay in seconds between each loop.
  * @returns A function used to end the sound. This function will return a promise when the sound has stopped.
  */
 function playSoundLooping(
@@ -120,7 +125,7 @@ interface UseAudioContext<S extends string> {
 /**
  * Add an audio context which can be used to play
  * a set of preloaded sounds.
- * @param props
+ * @param props The properties for the audio context.
  * @returns Either an instance that can be used to play sounds, or null if not ready.
  */
 export function useAudioContext<S extends string>(
diff --git a/src/utils/displayname.ts b/src/utils/displayname.ts
index 5ab5de9b..bc49b29e 100644
--- a/src/utils/displayname.ts
+++ b/src/utils/displayname.ts
@@ -77,6 +77,13 @@ export function shouldDisambiguate(
   );
 }
 
+/**
+ * Calculates a display name for a member, optionally disambiguating it.
+ * @param member - The member to calculate the display name for.
+ * @param member.rawDisplayName - The raw display name of the member
+ * @param member.userId - The user ID of the member
+ * @param disambiguate - Whether to disambiguate the display name.
+ */
 export function calculateDisplayName(
   member: { rawDisplayName?: string; userId: string },
   disambiguate: boolean,
diff --git a/src/utils/errors.ts b/src/utils/errors.ts
index bb37754a..3ac2527a 100644
--- a/src/utils/errors.ts
+++ b/src/utils/errors.ts
@@ -57,9 +57,16 @@ export class ElementCallError extends Error {
   }
 }
 
+/**
+ * Configuration problem due to no MatrixRTC backend/SFU is exposed via .well-known and no fallback configured.
+ */
 export class MatrixRTCTransportMissingError extends ElementCallError {
   public domain: string;
 
+  /**
+   * Creates an instance of MatrixRTCTransportMissingError.
+   * @param domain - The domain where the MatrixRTC transport is missing.
+   */
   public constructor(domain: string) {
     super(
       t("error.call_is_not_supported"),
@@ -75,7 +82,11 @@ export class MatrixRTCTransportMissingError extends ElementCallError {
   }
 }
 
+/**
+ * Error indicating that the connection to the call was lost and could not be re-established.
+ */
 export class ConnectionLostError extends ElementCallError {
+
   public constructor() {
     super(
       t("error.connection_lost"),
@@ -86,7 +97,17 @@ export class ConnectionLostError extends ElementCallError {
   }
 }
 
+/**
+ * Error indicating a failure in the membership manager causing the join call
+ * operation to fail.
+ */
 export class MembershipManagerError extends ElementCallError {
+
+  /**
+   * Creates an instance of MembershipManagerError.
+   *
+   * @param error - The underlying error that caused the membership manager failure.
+   */
   public constructor(error: Error) {
     super(
       t("error.membership_manager"),
@@ -98,7 +119,11 @@ export class MembershipManagerError extends ElementCallError {
   }
 }
 
+/**
+ * Error indicating that end-to-end encryption is not supported in the current environment.
+ */
 export class E2EENotSupportedError extends ElementCallError {
+
   public constructor() {
     super(
       t("error.e2ee_unsupported"),
@@ -109,7 +134,15 @@ export class E2EENotSupportedError extends ElementCallError {
   }
 }
 
+/**
+ * Error indicating an unknown issue occurred during a call operation.
+ */
 export class UnknownCallError extends ElementCallError {
+
+  /**
+   * Creates an instance of UnknownCallError.
+   * @param error - The underlying error that caused the unknown issue.
+   */
   public constructor(error: Error) {
     super(
       t("error.generic"),
@@ -122,7 +155,14 @@ export class UnknownCallError extends ElementCallError {
   }
 }
 
+/**
+ * Error indicating a failure to obtain an OpenID token.
+ */
 export class FailToGetOpenIdToken extends ElementCallError {
+  /**
+   * Creates an instance of FailToGetOpenIdToken.
+   * @param error - The underlying error that caused the failure.
+   */
   public constructor(error: Error) {
     super(
       t("error.generic"),
@@ -135,7 +175,15 @@ export class FailToGetOpenIdToken extends ElementCallError {
   }
 }
 
+/**
+ * Error indicating a failure to start publishing on a LiveKit connection.
+ */
 export class FailToStartLivekitConnection extends ElementCallError {
+
+  /**
+   * Creates an instance of FailToStartLivekitConnection.
+   * @param e - An optional error message providing additional context.
+   */
   public constructor(e?: string) {
     super(
       t("error.failed_to_start_livekit"),
@@ -146,6 +194,9 @@ export class FailToStartLivekitConnection extends ElementCallError {
   }
 }
 
+/**
+ * Error indicating that a LiveKit's server has hit its track limits.
+ */
 export class InsufficientCapacityError extends ElementCallError {
   public constructor() {
     super(
@@ -157,6 +208,10 @@ export class InsufficientCapacityError extends ElementCallError {
   }
 }
 
+/**
+ * Error indicating that room creation is restricted by the SFU.
+ * Only authorized users can create rooms, so the room must exist before connecting (done by the auth jwt service)
+ */
 export class SFURoomCreationRestrictedError extends ElementCallError {
   public constructor() {
     super(
diff --git a/src/utils/matrix.ts b/src/utils/matrix.ts
index 0a2b5c1a..4e3ae3c3 100644
--- a/src/utils/matrix.ts
+++ b/src/utils/matrix.ts
@@ -188,7 +188,6 @@ function fullAliasFromRoomName(roomName: string, client: MatrixClient): string {
  * Applies some basic sanitisation to a room name that the user
  * has given us
  * @param input The room name from the user
- * @param client A matrix client object
  */
 export function sanitiseRoomNameInput(input: string): string {
   // check to see if the user has entered a fully qualified room
@@ -304,8 +303,9 @@ export async function createRoom(
 /**
  * Returns an absolute URL to that will load Element Call with the given room
  * @param roomId ID of the room
- * @param roomName Name of the room
  * @param encryptionSystem what encryption (or EncryptionSystem.Unencrypted) the room uses
+ * @param roomName Name of the room
+ * @param viaServers Optional list of servers to include as 'via' parameters in the URL
  */
 export function getAbsoluteRoomUrl(
   roomId: string,
@@ -321,8 +321,9 @@ export function getAbsoluteRoomUrl(
 /**
  * Returns a relative URL to that will load Element Call with the given room
  * @param roomId ID of the room
- * @param roomName Name of the room
  * @param encryptionSystem what encryption (or EncryptionSystem.Unencrypted) the room uses
+ * @param roomName Name of the room
+ * @param viaServers Optional list of servers to include as 'via' parameters in the URL
  */
 export function getRelativeRoomUrl(
   roomId: string,
diff --git a/src/utils/media.ts b/src/utils/media.ts
index cdd81aa7..3750aa4e 100644
--- a/src/utils/media.ts
+++ b/src/utils/media.ts
@@ -8,6 +8,7 @@ Please see LICENSE in the repository root for full details.
 /**
  * Finds a media device with label matching 'deviceName'
  * @param deviceName The label of the device to look for
+ * @param kind The kind of media device to look for
  * @param devices The list of devices to search
  * @returns A matching media device or undefined if no matching device was found
  */
diff --git a/src/utils/observable.ts b/src/utils/observable.ts
index a6dafea3..9739353f 100644
--- a/src/utils/observable.ts
+++ b/src/utils/observable.ts
@@ -135,7 +135,6 @@ interface ItemHandle<Data, Item> {
  * requested at a later time, and destroyed (have their scope ended) when the
  * key is no longer requested.
  *
- * @param input$ The input value to be mapped.
  * @param generator A generator function yielding a tuple of keys and the
  *   currently associated data for each item that it wants to exist.
  * @param factory A function constructing an individual item, given the item's key,
diff --git a/yarn.lock b/yarn.lock
index abb3ef95..401bb7c9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2224,6 +2224,26 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@es-joy/jsdoccomment@npm:~0.76.0":
+  version: 0.76.0
+  resolution: "@es-joy/jsdoccomment@npm:0.76.0"
+  dependencies:
+    "@types/estree": "npm:^1.0.8"
+    "@typescript-eslint/types": "npm:^8.46.0"
+    comment-parser: "npm:1.4.1"
+    esquery: "npm:^1.6.0"
+    jsdoc-type-pratt-parser: "npm:~6.10.0"
+  checksum: 10c0/8fe4edec7d60562787ea8c77193ebe8737a9e28ec3143d383506b63890d0ffd45a2813e913ad1f00f227cb10e3a1fb913e5a696b33d499dc564272ff1a6f3fdb
+  languageName: node
+  linkType: hard
+
+"@es-joy/resolve.exports@npm:1.2.0":
+  version: 1.2.0
+  resolution: "@es-joy/resolve.exports@npm:1.2.0"
+  checksum: 10c0/7e4713471f5eccb17a925a12415a2d9e372a42376813a19f6abd9c35e8d01ab1403777265817da67c6150cffd4f558d9ad51e26a8de6911dad89d9cb7eedacd8
+  languageName: node
+  linkType: hard
+
 "@esbuild/aix-ppc64@npm:0.25.1":
   version: 0.25.1
   resolution: "@esbuild/aix-ppc64@npm:0.25.1"
@@ -4898,6 +4918,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@sindresorhus/base62@npm:^1.0.0":
+  version: 1.0.0
+  resolution: "@sindresorhus/base62@npm:1.0.0"
+  checksum: 10c0/9a14df0f058fdf4731c30f0f05728a4822144ee42236030039d7fa5a1a1072c2879feba8091fd4a17c8922d1056bc07bada77c31fddc3e15836fc05a266fd918
+  languageName: node
+  linkType: hard
+
 "@stylistic/eslint-plugin@npm:^3.0.0":
   version: 3.1.0
   resolution: "@stylistic/eslint-plugin@npm:3.1.0"
@@ -5196,7 +5223,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/estree@npm:1.0.8":
+"@types/estree@npm:1.0.8, @types/estree@npm:^1.0.8":
   version: 1.0.8
   resolution: "@types/estree@npm:1.0.8"
   checksum: 10c0/39d34d1afaa338ab9763f37ad6066e3f349444f9052b9676a7cc0252ef9485a41c6d81c9c4e0d26e9077993354edf25efc853f3224dd4b447175ef62bdcc86a5
@@ -5526,6 +5553,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@typescript-eslint/types@npm:^8.46.0":
+  version: 8.51.0
+  resolution: "@typescript-eslint/types@npm:8.51.0"
+  checksum: 10c0/eb3473d0bb71eb886438f35887b620ffadae7853b281752a40c73158aee644d136adeb82549be7d7c30f346fe888b2e979dff7e30e67b35377e8281018034529
+  languageName: node
+  linkType: hard
+
 "@typescript-eslint/typescript-estree@npm:5.62.0":
   version: 5.62.0
   resolution: "@typescript-eslint/typescript-estree@npm:5.62.0"
@@ -5886,6 +5920,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"acorn@npm:^8.15.0":
+  version: 8.15.0
+  resolution: "acorn@npm:8.15.0"
+  bin:
+    acorn: bin/acorn
+  checksum: 10c0/dec73ff59b7d6628a01eebaece7f2bdb8bb62b9b5926dcad0f8931f2b8b79c2be21f6c68ac095592adb5adb15831a3635d9343e6a91d028bbe85d564875ec3ec
+  languageName: node
+  linkType: hard
+
 "acorn@npm:^8.9.0":
   version: 8.12.1
   resolution: "acorn@npm:8.12.1"
@@ -5995,6 +6038,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"are-docs-informative@npm:^0.0.2":
+  version: 0.0.2
+  resolution: "are-docs-informative@npm:0.0.2"
+  checksum: 10c0/f0326981bd699c372d268b526b170a28f2e1aec2cf99d7de0686083528427ecdf6ae41fef5d9988e224a5616298af747ad8a76e7306b0a7c97cc085a99636d60
+  languageName: node
+  linkType: hard
+
 "argparse@npm:^2.0.1":
   version: 2.0.1
   resolution: "argparse@npm:2.0.1"
@@ -7045,6 +7095,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"comment-parser@npm:1.4.1":
+  version: 1.4.1
+  resolution: "comment-parser@npm:1.4.1"
+  checksum: 10c0/d6c4be3f5be058f98b24f2d557f745d8fe1cc9eb75bebbdccabd404a0e1ed41563171b16285f593011f8b6a5ec81f564fb1f2121418ac5cbf0f49255bf0840dd
+  languageName: node
+  linkType: hard
+
 "common-tags@npm:^1.8.0":
   version: 1.8.2
   resolution: "common-tags@npm:1.8.2"
@@ -7455,6 +7512,18 @@ __metadata:
   languageName: node
   linkType: hard
 
+"debug@npm:^4.4.3":
+  version: 4.4.3
+  resolution: "debug@npm:4.4.3"
+  dependencies:
+    ms: "npm:^2.1.3"
+  peerDependenciesMeta:
+    supports-color:
+      optional: true
+  checksum: 10c0/d79136ec6c83ecbefd0f6a5593da6a9c91ec4d7ddc4b54c883d6e71ec9accb5f67a1a5e96d00a328196b5b5c86d365e98d8a3a70856aaf16b4e7b1985e67f5a6
+  languageName: node
+  linkType: hard
+
 "decamelize@npm:^1.2.0":
   version: 1.2.0
   resolution: "decamelize@npm:1.2.0"
@@ -7825,6 +7894,7 @@ __metadata:
     eslint-config-prettier: "npm:^10.0.0"
     eslint-plugin-deprecate: "npm:^0.8.2"
     eslint-plugin-import: "npm:^2.26.0"
+    eslint-plugin-jsdoc: "npm:^61.5.0"
     eslint-plugin-jsx-a11y: "npm:^6.5.1"
     eslint-plugin-matrix-org: "npm:2.1.0"
     eslint-plugin-react: "npm:^7.29.4"
@@ -8399,6 +8469,30 @@ __metadata:
   languageName: node
   linkType: hard
 
+"eslint-plugin-jsdoc@npm:^61.5.0":
+  version: 61.5.0
+  resolution: "eslint-plugin-jsdoc@npm:61.5.0"
+  dependencies:
+    "@es-joy/jsdoccomment": "npm:~0.76.0"
+    "@es-joy/resolve.exports": "npm:1.2.0"
+    are-docs-informative: "npm:^0.0.2"
+    comment-parser: "npm:1.4.1"
+    debug: "npm:^4.4.3"
+    escape-string-regexp: "npm:^4.0.0"
+    espree: "npm:^10.4.0"
+    esquery: "npm:^1.6.0"
+    html-entities: "npm:^2.6.0"
+    object-deep-merge: "npm:^2.0.0"
+    parse-imports-exports: "npm:^0.2.4"
+    semver: "npm:^7.7.3"
+    spdx-expression-parse: "npm:^4.0.0"
+    to-valid-identifier: "npm:^1.0.0"
+  peerDependencies:
+    eslint: ^7.0.0 || ^8.0.0 || ^9.0.0
+  checksum: 10c0/fabb04f6efe58a167a0839d3c05676a76080c6e91d98a269fa768c1bfd835aa0ded5822d400da2874216177044d2d227ebe241d73e923f3fe1c08bafd19cfd3d
+  languageName: node
+  linkType: hard
+
 "eslint-plugin-jsx-a11y@npm:^6.5.1":
   version: 6.10.2
   resolution: "eslint-plugin-jsx-a11y@npm:6.10.2"
@@ -8633,6 +8727,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"espree@npm:^10.4.0":
+  version: 10.4.0
+  resolution: "espree@npm:10.4.0"
+  dependencies:
+    acorn: "npm:^8.15.0"
+    acorn-jsx: "npm:^5.3.2"
+    eslint-visitor-keys: "npm:^4.2.1"
+  checksum: 10c0/c63fe06131c26c8157b4083313cb02a9a54720a08e21543300e55288c40e06c3fc284bdecf108d3a1372c5934a0a88644c98714f38b6ae8ed272b40d9ea08d6b
+  languageName: node
+  linkType: hard
+
 "espree@npm:^9.6.0, espree@npm:^9.6.1":
   version: 9.6.1
   resolution: "espree@npm:9.6.1"
@@ -9526,6 +9631,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"html-entities@npm:^2.6.0":
+  version: 2.6.0
+  resolution: "html-entities@npm:2.6.0"
+  checksum: 10c0/7c8b15d9ea0cd00dc9279f61bab002ba6ca8a7a0f3c36ed2db3530a67a9621c017830d1d2c1c65beb9b8e3436ea663e9cf8b230472e0e413359399413b27c8b7
+  languageName: node
+  linkType: hard
+
 "html-escaper@npm:^2.0.0":
   version: 2.0.2
   resolution: "html-escaper@npm:2.0.2"
@@ -10295,6 +10407,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"jsdoc-type-pratt-parser@npm:~6.10.0":
+  version: 6.10.0
+  resolution: "jsdoc-type-pratt-parser@npm:6.10.0"
+  checksum: 10c0/8ea395df0cae0e41d4bdba5f8d81b8d3e467fe53d1e4182a5d4e653235a5f17d60ed137343d68dbc74fa10e767f1c58fb85b1f6d5489c2cf16fc7216cc6d3e1a
+  languageName: node
+  linkType: hard
+
 "jsdom@npm:^26.0.0":
   version: 26.1.0
   resolution: "jsdom@npm:26.1.0"
@@ -11250,6 +11369,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"object-deep-merge@npm:^2.0.0":
+  version: 2.0.0
+  resolution: "object-deep-merge@npm:2.0.0"
+  checksum: 10c0/69e8741131ad49fa8720fb96007a3c82dca1119b5d874151d2ecbcc3b44ccd46e8553c7a30b0abcba752c099ba361bbba97f33a68c9ae54c57eed7be116ffc97
+  languageName: node
+  linkType: hard
+
 "object-inspect@npm:^1.13.3":
   version: 1.13.3
   resolution: "object-inspect@npm:1.13.3"
@@ -11563,6 +11689,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"parse-imports-exports@npm:^0.2.4":
+  version: 0.2.4
+  resolution: "parse-imports-exports@npm:0.2.4"
+  dependencies:
+    parse-statements: "npm:1.0.11"
+  checksum: 10c0/51b729037208abdf65c4a1f8e9ed06f4e7ccd907c17c668a64db54b37d95bb9e92081f8b16e4133e14102af3cb4e89870975b6ad661b4d654e9ec8f4fb5c77d6
+  languageName: node
+  linkType: hard
+
 "parse-json@npm:^5.0.0, parse-json@npm:^5.2.0":
   version: 5.2.0
   resolution: "parse-json@npm:5.2.0"
@@ -11575,6 +11710,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"parse-statements@npm:1.0.11":
+  version: 1.0.11
+  resolution: "parse-statements@npm:1.0.11"
+  checksum: 10c0/48960e085019068a5f5242e875fd9d21ec87df2e291acf5ad4e4887b40eab6929a8c8d59542acb85a6497e870c5c6a24f5ab7f980ef5f907c14cc5f7984a93f3
+  languageName: node
+  linkType: hard
+
 "parse5-htmlparser2-tree-adapter@npm:^7.0.0":
   version: 7.1.0
   resolution: "parse5-htmlparser2-tree-adapter@npm:7.1.0"
@@ -12820,6 +12962,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"reserved-identifiers@npm:^1.0.0":
+  version: 1.2.0
+  resolution: "reserved-identifiers@npm:1.2.0"
+  checksum: 10c0/b82651b12e6c608e80463c3753d275bc20fd89294d0415f04e670aeec3611ae3582ddc19e8fedd497e7d0bcbfaddab6a12823ec86e855b1e6a245e0a734eb43d
+  languageName: node
+  linkType: hard
+
 "resolve-from@npm:^4.0.0":
   version: 4.0.0
   resolution: "resolve-from@npm:4.0.0"
@@ -13280,6 +13429,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"semver@npm:^7.7.3":
+  version: 7.7.3
+  resolution: "semver@npm:7.7.3"
+  bin:
+    semver: bin/semver.js
+  checksum: 10c0/4afe5c986567db82f44c8c6faef8fe9df2a9b1d98098fc1721f57c696c4c21cebd572f297fc21002f81889492345b8470473bc6f4aff5fb032a6ea59ea2bc45e
+  languageName: node
+  linkType: hard
+
 "set-blocking@npm:^2.0.0":
   version: 2.0.0
   resolution: "set-blocking@npm:2.0.0"
@@ -13548,6 +13706,16 @@ __metadata:
   languageName: node
   linkType: hard
 
+"spdx-expression-parse@npm:^4.0.0":
+  version: 4.0.0
+  resolution: "spdx-expression-parse@npm:4.0.0"
+  dependencies:
+    spdx-exceptions: "npm:^2.1.0"
+    spdx-license-ids: "npm:^3.0.0"
+  checksum: 10c0/965c487e77f4fb173f1c471f3eef4eb44b9f0321adc7f93d95e7620da31faa67d29356eb02523cd7df8a7fc1ec8238773cdbf9e45bd050329d2b26492771b736
+  languageName: node
+  linkType: hard
+
 "spdx-license-ids@npm:^3.0.0":
   version: 3.0.20
   resolution: "spdx-license-ids@npm:3.0.20"
@@ -14055,6 +14223,16 @@ __metadata:
   languageName: node
   linkType: hard
 
+"to-valid-identifier@npm:^1.0.0":
+  version: 1.0.0
+  resolution: "to-valid-identifier@npm:1.0.0"
+  dependencies:
+    "@sindresorhus/base62": "npm:^1.0.0"
+    reserved-identifiers: "npm:^1.0.0"
+  checksum: 10c0/569b49f43b5aaaa20677e67f0f1cdcff344855149934cfb80c793c7ac7c30e191b224bc81cab40fb57641af9ca73795c78053c164a2addc617671e2d22c13a4a
+  languageName: node
+  linkType: hard
+
 "toggle-selection@npm:^1.0.6":
   version: 1.0.6
   resolution: "toggle-selection@npm:1.0.6"