Allow either hand at the commit, and measure continuous redraws

Committing from the agent rules out running it where there is no git
identity, a sandbox included. Either is now fine: commit on the user's
word where the setup allows it, or write the message and hand it over.

Redrawing continuously is the other addition. A level meter reported a
fresh value every animation frame, so its whole menu reconciled sixty
times a second, silence included, and nobody noticed until review. A PR
that adds anything of the kind now says what it costs, or better, counts
the redraws — commits rather than render calls, since React runs a
component it then discards.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

README.md

@@ -34,16 +34,16 @@ You can find the latest development version continuously deployed to
 ## ✨ Key Features
 
 ✅ **Decentralized & Federated** – No central authority; works across Matrix
-homeservers.
-✅ **End-to-End Encrypted** – Secure and private calls.
+homeservers.  
+✅ **End-to-End Encrypted** – Secure and private calls.  
 ✅ **Standalone, Widget & Component Mode** – Use as an independent app, embed
 in Matrix clients as a widget, or (experimentally) mount it as a React component
-inside your own application.
-✅ **WebRTC-based** – No additional software required.
+inside your own application.  
+✅ **WebRTC-based** – No additional software required.  
 ✅ **Scalable with LiveKit** – Supports large meetings via SFU
-([MSC4195: MatrixRTC using LiveKit backend](https://github.com/hughns/matrix-spec-proposals/blob/hughns/matrixrtc-livekit/proposals/4195-matrixrtc-livekit.md)).
+([MSC4195: MatrixRTC using LiveKit backend](https://github.com/hughns/matrix-spec-proposals/blob/hughns/matrixrtc-livekit/proposals/4195-matrixrtc-livekit.md)).  
 ✅ **Raise Hand** – Participants can signal when they want to speak, helping to
-organize the flow of the meeting.
+organize the flow of the meeting.  
 ✅ **Emoji Reactions** – Users can react with emojis 👍️ 🎉 👏 🤘, adding
 engagement and interactivity to the conversation.
 
@@ -309,23 +309,6 @@ root. The host imports the component from
 `react-dom`, `matrix-js-sdk` and `livekit-client` itself, since the bundle leaves
 them external.
 
-The component is large, and a host will usually load it lazily, only once a
-call is shown. Everything a host needs in order to talk about a call before
-then is also exported
-from `@element-hq/element-call-component/api` (a small entry point that does not
-load the component).
-
-- props and the types they are made of
-- the handle
-- the host bridge
-- `UserIntent`
-- `HeaderStyle`
-- `BackgroundStyle` enums
-- `configurationForIntent`, the defaults each intent implies
-  Import from it wherever a value such as
-  `BackgroundStyle.Solid` is needed on a path that must stay light; the main
-  entry point re-exports all of it too.
-
 ### Backend
 
 A docker compose file `docker-compose-dev.yml` is provided to start the

backend/app-service-othersite.yaml

@@ -1,17 +0,0 @@
-id: "lk-jwt-service-othersite"
-as_token: "ec_dev_as_token_othersite_0123456789ab"
-hs_token: "ec_dev_hs_token_othersite_0123456789ab"
-sender_localpart: "_lk_jwt_service"
-namespaces:
-  users:
-    - exclusive: false
-      regex: "@.*:homeserver-1" # Cover all local users
-# Required for Synapse to call POST /_matrix/app/v1/ping on this service.
-url: "http://auth-server-1:16080"
-# Enable membership look-ups via /is_joined.
-io.element.msc4502.scopes:
-  ["urn:matrix:client:io.element.msc4502:rooms:is_joined"]
-# Route /_matrix/client/(v*|unstable/*)/rtc/livekit/* C-S and S-S requests to this
-# service.
-io.element.msc4512.proxy_prefix: "rtc/livekit"
-io.element.msc4512.proxy_url: "http://auth-server-1:16080"

backend/app-service.yaml

@@ -1,17 +0,0 @@
-id: "lk-jwt-service"
-as_token: "ec_dev_as_token_main_0123456789ab"
-hs_token: "ec_dev_hs_token_main_0123456789ab"
-sender_localpart: "_lk_jwt_service"
-namespaces:
-  users:
-    - exclusive: false
-      regex: "@.*:homeserver" # Cover all local users
-# Required for Synapse to call POST /_matrix/app/v1/ping on this service.
-url: "http://auth-server:6080"
-# Enable membership look-ups via /is_joined.
-io.element.msc4502.scopes:
-  ["urn:matrix:client:io.element.msc4502:rooms:is_joined"]
-# Route /_matrix/client/(v*|unstable/*)/rtc/livekit/* C-S and S-S requests to this
-# service.
-io.element.msc4512.proxy_prefix: "rtc/livekit"
-io.element.msc4512.proxy_url: "http://auth-server:6080"

backend/dev_homeserver-othersite.yaml

@@ -42,13 +42,6 @@ experimental_features:
   msc4354_enabled: true
   # MatrixRTC
   msc4143_enabled: true
-  # Enable membership look-up via /is_joined.
-  msc4502_enabled: true
-  # Enable C-S & S-S request proxying for application services.
-  msc4512_enabled: true
-
-app_service_config_files:
-  - /data/cfg/app-service.yaml
 
 # The maximum allowed duration by which sent events can be delayed, as
 # per MSC4140. Must be a positive value if set.  Defaults to no

backend/dev_homeserver.yaml

@@ -42,13 +42,6 @@ experimental_features:
   msc4354_enabled: true
   # MatrixRTC
   msc4143_enabled: true
-  # Enable membership look-up via /is_joined.
-  msc4502_enabled: true
-  # Enable C-S & S-S request proxying for application services.
-  msc4512_enabled: true
-
-app_service_config_files:
-  - /data/cfg/app-service.yaml
 
 # The maximum allowed duration by which sent events can be delayed, as
 # per MSC4140. Must be a positive value if set.  Defaults to no

backend/playwright_homeserver-othersite.yaml

@@ -42,13 +42,6 @@ experimental_features:
   msc4354_enabled: true
   # MatrixRTC
   msc4143_enabled: true
-  # Enable membership look-up via /is_joined.
-  msc4502_enabled: true
-  # Enable C-S & S-S request proxying for application services.
-  msc4512_enabled: true
-
-app_service_config_files:
-  - /data/cfg/app-service.yaml
 
 # The maximum allowed duration by which sent events can be delayed, as
 # per MSC4140. Must be a positive value if set.  Defaults to no

backend/playwright_homeserver.yaml

@@ -42,13 +42,6 @@ experimental_features:
   msc4354_enabled: true
   # MatrixRTC
   msc4143_enabled: true
-  # Enable membership look-up via /is_joined.
-  msc4502_enabled: true
-  # Enable C-S & S-S request proxying for application services.
-  msc4512_enabled: true
-
-app_service_config_files:
-  - /data/cfg/app-service.yaml
 
 # The maximum allowed duration by which sent events can be delayed, as
 # per MSC4140. Must be a positive value if set.  Defaults to no

component/api.ts

@@ -1,124 +0,0 @@
-/*
-Copyright 2026 Element Creations Ltd.
-
-SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
-Please see LICENSE in the repository root for full details.
-*/
-
-/**
- * EXPERIMENTAL
- *
- * What a host needs in order to talk about Element Call, without Element Call:
- * the component's props and the types they are made of, the handle and the
- * host bridge, the intents a call can be started with and the configuration
- * each implies.
- *
- * This is an entry point of its own, `@element-hq/element-call-component/api`,
- * so that a host can import it on a path that must stay light — a call model
- * that needs `BackgroundStyle.Solid` as a value, say — and load the component
- * itself, and everything it brings, only when a call is shown. The main entry
- * point re-exports all of it, so a host that does not care may import
- * everything from there.
- *
- * Nothing in here may reach anything that is not a type or a constant: the
- * point of this module is what it does not import.
- */
-
-import type { Ref } from "react";
-import type { MatrixClient } from "matrix-js-sdk";
-
-import type { UrlProperties } from "../src/UrlParams";
-import type { ElementCallHandle, ElementCallHostBridge } from "./host";
-import {
-  BackgroundStyle,
-  configurationForIntent,
-  HeaderStyle,
-  type UrlConfiguration,
-  UserIntent,
-} from "../src/UrlConfiguration";
-
-// How the host and Element Call talk to each other, and what they say
-export type { ElementCallHandle, ElementCallHostBridge } from "./host";
-export type { DeviceMuteRequest, DeviceMuteState } from "../src/HostBridge";
-export type { JoinCallData } from "../src/widget";
-// The deployment-wide configuration, as distinct from ElementCallConfiguration
-// below, which is per call
-export type { ConfigOptions } from "../src/config/ConfigOptions";
-// The values that appear in ElementCallConfiguration and in the intent, and
-// what each intent means by default
-export {
-  BackgroundStyle,
-  configurationForIntent,
-  HeaderStyle,
-  type UrlConfiguration,
-  UserIntent,
-};
-
-/**
- * How Element Call should behave. Everything is optional; anything left out
- * takes the default that {@link ElementCallProps.intent} implies.
- *
- * This is the behaviour a widget can be configured with through its URL, plus
- * the one fact about the call a host has a say in here, the background. The
- * rest of what a widget's URL carries — who the user is, how to reach the
- * homeserver, where to report analytics, the shared secret of a room that is
- * encrypted with one — a component host supplies by other routes, or not at
- * all; and what can change while the call is running, the theme and the
- * language, is a prop of its own.
- */
-export type ElementCallConfiguration = Partial<UrlConfiguration> &
-  Partial<Pick<UrlProperties, "background">>;
-
-export interface ElementCallProps {
-  /**
-   * The client to place the call with. Element Call does not authenticate
-   * anyone or manage a session of its own; this one is the host's.
-   */
-  client: MatrixClient;
-  /** The room to call in. The host's client must already know about it. */
-  roomId: string;
-  /**
-   * What the user asked for — whether they started the call or joined one that
-   * was already running, and whether it is a call in a group or a DM. Element
-   * Call decides what each of those means: whether to show the lobby first,
-   * whether to ring, and so on.
-   *
-   * Defaults to joining an existing group call, which is the most conservative
-   * reading, but a host that knows which button the user pressed should say so.
-   */
-  intent?: UserIntent;
-  /**
-   * How Element Call should behave, overriding whatever {@link intent} implies.
-   * A host that finds itself setting a lot of these probably wants a different
-   * intent instead.
-   *
-   * Compared by value, so it is fine to write this inline; only a change to
-   * what it says restarts anything.
-   */
-  config?: ElementCallConfiguration;
-  /**
-   * What Element Call tells the host while the call is running: that the user
-   * has joined or hung up, that it would like to be kept on screen, and so on.
-   * Without one, Element Call assumes nobody is listening.
-   */
-  hostBridge?: ElementCallHostBridge;
-  /**
-   * What the host tells Element Call: to hang up, to mute, to join. Available
-   * once the component has rendered.
-   */
-  ref?: Ref<ElementCallHandle>;
-  /**
-   * The theme to show Element Call in, `light` or `dark`. Left out, Element
-   * Call picks. Changes take effect at once, and cost nothing else.
-   */
-  theme?: string;
-  /**
-   * The language to show Element Call in, as a BCP 47 tag: one of the
-   * `supportedLanguages` the main entry point exports, or something that falls
-   * back to one (`de-AT` to `de`). Left out, the browser's language is used.
-   *
-   * Translations are one thing shared by every Element Call on the page, so
-   * the most recently set language wins for all of them.
-   */
-  language?: string;
-}

component/index.tsx

@@ -36,12 +36,14 @@ import {
   type FC,
   type JSX,
   type ReactNode,
+  type Ref,
   useEffect,
   useLayoutEffect,
   useMemo,
   useRef,
   useState,
 } from "react";
+import { type MatrixClient } from "matrix-js-sdk";
 import { logger } from "matrix-js-sdk/lib/logger";
 import { I18nextProvider } from "react-i18next";
 import { TooltipProvider } from "@vector-im/compound-web";
@@ -60,8 +62,10 @@ import { RootElementProvider, useRootElement } from "../src/RootElementContext";
 import {
   configurationForIntent,
   componentProperties,
+  type UrlConfiguration,
   type UrlParams,
   UrlParamsProvider,
+  type UrlProperties,
   UserIntent,
   useUrlParams,
 } from "../src/UrlParams";
@@ -75,16 +79,102 @@ import { i18n } from "../src/utils/i18n";
 import { useTheme } from "../src/useTheme";
 import { useStableValue } from "../src/useStableValue";
 import styles from "./ElementCall.module.css";
-import { useComponentHostBridge } from "./host";
-import { type ElementCallProps } from "./api";
+import {
+  type ElementCallHandle,
+  type ElementCallHostBridge,
+  useComponentHostBridge,
+} from "./host";
 import { supportedLanguages, translationsBackend } from "./localization";
 
 // The languages Element Call can be shown in
 export { supportedLanguages } from "./localization";
-// Everything a host needs to talk about Element Call — the props, the handle,
-// the host bridge, the intents and what each means — also available without
-// the component itself from `@element-hq/element-call-component/api`
-export * from "./api";
+
+// How the host and Element Call talk to each other, and what they say
+export { type ElementCallHandle, type ElementCallHostBridge } from "./host";
+export {
+  type DeviceMuteRequest,
+  type DeviceMuteState,
+} from "../src/HostBridge";
+export { type JoinCallData } from "../src/widget";
+// The deployment-wide configuration, as distinct from ElementCallConfiguration
+// above, which is per call
+export { type ConfigOptions } from "../src/config/ConfigOptions";
+// The values that appear in ElementCallConfiguration and in the intent
+export {
+  BackgroundStyle,
+  HeaderStyle,
+  UserIntent,
+  type UrlConfiguration,
+} from "../src/UrlParams";
+
+/**
+ * How Element Call should behave. Everything is optional; anything left out
+ * takes the default that {@link ElementCallProps.intent} implies.
+ *
+ * This is the behaviour a widget can be configured with through its URL, plus
+ * the one fact about the call a host has a say in here, the background. The
+ * rest of what a widget's URL carries — who the user is, how to reach the
+ * homeserver, where to report analytics, the shared secret of a room that is
+ * encrypted with one — a component host supplies by other routes, or not at
+ * all; and what can change while the call is running, the theme and the
+ * language, is a prop of its own.
+ */
+export type ElementCallConfiguration = Partial<UrlConfiguration> &
+  Partial<Pick<UrlProperties, "background">>;
+
+export interface ElementCallProps {
+  /**
+   * The client to place the call with. Element Call does not authenticate
+   * anyone or manage a session of its own; this one is the host's.
+   */
+  client: MatrixClient;
+  /** The room to call in. The host's client must already know about it. */
+  roomId: string;
+  /**
+   * What the user asked for — whether they started the call or joined one that
+   * was already running, and whether it is a call in a group or a DM. Element
+   * Call decides what each of those means: whether to show the lobby first,
+   * whether to ring, and so on.
+   *
+   * Defaults to joining an existing group call, which is the most conservative
+   * reading, but a host that knows which button the user pressed should say so.
+   */
+  intent?: UserIntent;
+  /**
+   * How Element Call should behave, overriding whatever {@link intent} implies.
+   * A host that finds itself setting a lot of these probably wants a different
+   * intent instead.
+   *
+   * Compared by value, so it is fine to write this inline; only a change to
+   * what it says restarts anything.
+   */
+  config?: ElementCallConfiguration;
+  /**
+   * What Element Call tells the host while the call is running: that the user
+   * has joined or hung up, that it would like to be kept on screen, and so on.
+   * Without one, Element Call assumes nobody is listening.
+   */
+  hostBridge?: ElementCallHostBridge;
+  /**
+   * What the host tells Element Call: to hang up, to mute, to join. Available
+   * once the component has rendered.
+   */
+  ref?: Ref<ElementCallHandle>;
+  /**
+   * The theme to show Element Call in, `light` or `dark`. Left out, Element
+   * Call picks. Changes take effect at once, and cost nothing else.
+   */
+  theme?: string;
+  /**
+   * The language to show Element Call in, as a BCP 47 tag: one of
+   * {@link supportedLanguages}, or something that falls back to one (`de-AT`
+   * to `de`). Left out, the browser's language is used.
+   *
+   * Translations are one thing shared by every Element Call on the page, so
+   * the most recently set language wins for all of them.
+   */
+  language?: string;
+}
 
 /**
  * Prepares the things Element Call needs before it can be shown: translations,

component/package.json

@@ -25,10 +25,6 @@
       "types": "./dist/types/component/index.d.ts",
       "default": "./dist/element-call.js"
     },
-    "./api": {
-      "types": "./dist/types/component/api.d.ts",
-      "default": "./dist/api.js"
-    },
     "./style.css": "./dist/element-call.css"
   },
   "sideEffects": [

component/tsconfig.build.json

@@ -13,8 +13,8 @@
     "rootDir": "..",
     "outDir": "./dist/types"
   },
-  // The entry points, plus the ambient declarations (CSS modules, `?react` SVGs,
-  // `import.meta.env`, …) that the sources they reach rely on.
-  "include": ["./index.tsx", "./api.ts", "../src/@types/*.d.ts"],
+  // The entry point, plus the ambient declarations (CSS modules, `?react` SVGs,
+  // `import.meta.env`, …) that the sources it reaches rely on.
+  "include": ["./index.tsx", "../src/@types/*.d.ts"],
   "exclude": []
 }

docker-compose-dev.yml

@@ -3,7 +3,7 @@ networks:
 
 services:
   auth-service:
-    image: ghcr.io/element-hq/lk-jwt-service:0.7.0
+    image: ghcr.io/element-hq/lk-jwt-service:0.4.4
     pull_policy: always
     hostname: auth-server
     environment:
@@ -15,14 +15,6 @@ services:
       # a self-signed certificate
       - LIVEKIT_INSECURE_SKIP_VERIFY_TLS=YES_I_KNOW_WHAT_I_AM_DOING
       - LIVEKIT_FULL_ACCESS_HOMESERVERS=*
-      # Registers this instance as an application service on the main homeserver
-      - LIVEKIT_AS_REGISTRATION_FILE=/etc/lk-jwt-service/app-service.yaml
-      - LIVEKIT_HS_SERVER_NAME=synapse.m.localhost
-      # Neither homeserver serves /.well-known/matrix/client, so the C-S API
-      # location has to be given explicitly.
-      - LIVEKIT_CS_API_URL_OVERRIDES=synapse.m.localhost=http://homeserver:8008,synapse.othersite.m.localhost=http://homeserver-1:18008
-    volumes:
-      - ./backend/app-service.yaml:/etc/lk-jwt-service/app-service.yaml:Z
     deploy:
       restart_policy:
         condition: on-failure
@@ -33,7 +25,7 @@ services:
       - ecbackend
 
   auth-service-1:
-    image: ghcr.io/element-hq/lk-jwt-service:0.7.0
+    image: ghcr.io/element-hq/lk-jwt-service:0.4.4
     pull_policy: always
     hostname: auth-server-1
     environment:
@@ -45,14 +37,6 @@ services:
       # a self-signed certificate
       - LIVEKIT_INSECURE_SKIP_VERIFY_TLS=YES_I_KNOW_WHAT_I_AM_DOING
       - LIVEKIT_FULL_ACCESS_HOMESERVERS=*
-      # Registers this instance as an application service on the other homeserver.
-      - LIVEKIT_AS_REGISTRATION_FILE=/etc/lk-jwt-service/app-service.yaml
-      - LIVEKIT_HS_SERVER_NAME=synapse.othersite.m.localhost
-      # Neither homeserver serves /.well-known/matrix/client, so the C-S API
-      # location has to be given explicitly.
-      - LIVEKIT_CS_API_URL_OVERRIDES=synapse.m.localhost=http://homeserver:8008,synapse.othersite.m.localhost=http://homeserver-1:18008
-    volumes:
-      - ./backend/app-service-othersite.yaml:/etc/lk-jwt-service/app-service.yaml:Z
     deploy:
       restart_policy:
         condition: on-failure
@@ -110,10 +94,7 @@ services:
 
   synapse:
     hostname: homeserver
-    # develop (not latest) is required for application service C-S/S-S proxying
-    # (MSC4512) and membership look-ups (MSC4502), which are not in a stable
-    # release yet.
-    image: ghcr.io/element-hq/synapse:develop
+    image: ghcr.io/element-hq/synapse:latest
     pull_policy: always
     environment:
       - SYNAPSE_CONFIG_PATH=/data/cfg/homeserver.yaml
@@ -126,16 +107,12 @@ services:
     volumes:
       - ./backend/synapse_tmp:/data:Z
       - ./backend/dev_homeserver.yaml:/data/cfg/homeserver.yaml:Z
-      - ./backend/app-service.yaml:/data/cfg/app-service.yaml:Z
     networks:
       - ecbackend
 
   synapse-1:
     hostname: homeserver-1
-    # develop (not latest) is required for application service C-S/S-S proxying
-    # (MSC4512) and membership look-ups (MSC4502), which are not in a stable
-    # release yet.
-    image: ghcr.io/element-hq/synapse:develop
+    image: ghcr.io/element-hq/synapse:latest
     pull_policy: always
     environment:
       - SYNAPSE_CONFIG_PATH=/data/cfg/homeserver.yaml
@@ -148,7 +125,6 @@ services:
     volumes:
       - ./backend/synapse_tmp_othersite:/data:Z
       - ./backend/dev_homeserver-othersite.yaml:/data/cfg/homeserver.yaml:Z
-      - ./backend/app-service-othersite.yaml:/data/cfg/app-service.yaml:Z
     networks:
       - ecbackend
 

docker-compose-playwright.yml

@@ -3,23 +3,17 @@
 services:
   synapse:
     # Pin to a SHA so that upstream cannot break our tests. Renovate handles regular updates.
-    # develop (not latest) is required for application service C-S/S-S proxying
-    # (MSC4512) and membership look-ups (MSC4502), which are not in a stable
-    # release yet.
-    image: ghcr.io/element-hq/synapse:develop@sha256:337921fd22be310d453344b2265f6c9942315446595df3cf81866f71ca2055a7
+    image: ghcr.io/element-hq/synapse:latest@sha256:da325af40104051923899e5f5a2f1d537e6e3ccf2f0f38285689ae9bbfdb190a
     volumes:
       - ./backend/playwright_homeserver.yaml:/data/cfg/homeserver.yaml:Z
   synapse-1:
     # Pin to a SHA so that upstream cannot break our tests. Renovate handles regular updates.
-    # develop (not latest) is required for application service C-S/S-S proxying
-    # (MSC4512) and membership look-ups (MSC4502), which are not in a stable
-    # release yet.
-    image: ghcr.io/element-hq/synapse:develop@sha256:337921fd22be310d453344b2265f6c9942315446595df3cf81866f71ca2055a7
+    image: ghcr.io/element-hq/synapse:latest@sha256:da325af40104051923899e5f5a2f1d537e6e3ccf2f0f38285689ae9bbfdb190a
     volumes:
       - ./backend/playwright_homeserver-othersite.yaml:/data/cfg/homeserver.yaml:Z
   element-web:
     # Pin to a SHA so that upstream cannot break our tests. Renovate handles regular updates.
-    image: ghcr.io/element-hq/element-web:develop@sha256:3993d53bc2c784c0376b86e00230aef0ee2c9a705b2166e9229555117e8db167
+    image: ghcr.io/element-hq/element-web:develop@sha256:6ed62b2963ae098a1f79521eb516834dcf29452168e281cc359d9cfb4380adf6
   element-web-1:
     # Pin to a SHA so that upstream cannot break our tests. Renovate handles regular updates.
-    image: ghcr.io/element-hq/element-web:develop@sha256:3993d53bc2c784c0376b86e00230aef0ee2c9a705b2166e9229555117e8db167
+    image: ghcr.io/element-hq/element-web:develop@sha256:6ed62b2963ae098a1f79521eb516834dcf29452168e281cc359d9cfb4380adf6

docs/agents/architecture.md

@@ -76,7 +76,4 @@ Code that builds in only one is a bug.
 - `build:component` — `@element-hq/element-call-component`, sources in `component/`
   (its own pnpm project; run pnpm from the repo root). Host API is in the README;
   `pnpm lint:externals` rejects an import of a `react` / `react-dom` /
-  `matrix-js-sdk` / `livekit-client` subpath the externals list omits. Two entry
-  points: `index.tsx` (the component) and `api.ts` (types, enums and
-  `configurationForIntent`, for a host that must not load the component). `api.ts`
-  may only reach types and constants — `src/UrlConfiguration.ts`, not `UrlParams`.
+  `matrix-js-sdk` / `livekit-client` subpath the externals list omits.

package.json

@@ -8,7 +8,7 @@
     "dev:embedded": "vite --config vite-embedded.config.js",
     "dev:component": "vite --config vite-component-dev.config.ts",
     "build": "pnpm build:full",
-    "build:full": "node --max-old-space-size=16384 node_modules/vite/bin/vite.js build",
+    "build:full": "NODE_OPTIONS=--max-old-space-size=16384 vite build",
     "build:full:production": "pnpm build:full",
     "build:full:development": "pnpm build:full --mode development",
     "build:embedded": "pnpm build:full --config vite-embedded.config.js",

playwright/fixtures/widget-user.ts

@@ -109,15 +109,10 @@ export const widgetTest = test.extend<MyFixtures>({
       await TestHelpers.dismissInviteUnknownUserModal(ewPage1);
 
       // Accept the invite
-      await TestHelpers.closeReleaseAnnouncement(
-        ewPage2,
-        "Introducing Sections",
-      );
-      await TestHelpers.expandAllSections(ewPage2);
       await expect(
-        TestHelpers.roomListItem(ewPage2, "Welcome Room"),
+        ewPage2.getByRole("option", { name: "Welcome Room" }),
       ).toBeVisible();
-      await TestHelpers.roomListItem(ewPage2, "Welcome Room").click();
+      await ewPage2.getByRole("option", { name: "Welcome Room" }).click();
       await ewPage2.getByRole("button", { name: "Accept" }).click();
       await expect(
         ewPage2
@@ -157,12 +152,8 @@ export const widgetTest = test.extend<MyFixtures>({
       ).toBeVisible();
 
       // Accept the DM invite from brooks
-      await TestHelpers.closeReleaseAnnouncement(
-        ewPage2,
-        "Introducing Sections",
-      );
-      await TestHelpers.expandAllSections(ewPage2);
-      await TestHelpers.roomListItem(ewPage2, brooksDisplayName).click();
+      // This how playwright record selects the DM invite in the room list
+      await ewPage2.getByRole("button", { name: "Open room" }).click();
       await ewPage2.getByRole("button", { name: "Start chatting" }).click();
     }
 

playwright/reconnect.spec.ts

@@ -7,8 +7,6 @@ Please see LICENSE in the repository root for full details.
 
 import { expect, test } from "@playwright/test";
 
-import { SpaHelpers } from "./spa-helpers";
-
 // Skip test for Firefox, due to page.keyboard.press("Tab") not reliable on headless mode
 test.skip(
   ({ browserName }) => browserName === "firefox",
@@ -19,12 +17,6 @@ test("can only interact with header and footer while reconnecting", async ({
   page,
 }) => {
   await page.goto("/");
-
-  // The reconnecting state is entered via the probablyLeft timer, which
-  // mirrors the delayed leave event's timeout. With delegation that timeout
-  // is one hour, putting it out of reach of the clock fast-forward below.
-  // Keep the leave client-managed so its short timeout applies.
-  await SpaHelpers.disableLeaveDelegation(page);
   await page.getByTestId("home_callName").click();
   await page.getByTestId("home_callName").fill("Test call");
   await page.getByTestId("home_displayName").click();

playwright/spa-call-sticky.spec.ts

@@ -19,7 +19,6 @@ async function setupTwoUserSpaCall(
   browser: Browser,
   page: Page,
   browserName: string,
-  opts: { disableGuestLeaveDelegation?: boolean } = {},
 ): Promise<{ guestPage: Page }> {
   test.skip(
     browserName === "firefox",
@@ -53,9 +52,6 @@ async function setupTwoUserSpaCall(
 
   await guestPage.goto("/");
 
-  if (opts.disableGuestLeaveDelegation)
-    await SpaHelpers.disableLeaveDelegation(guestPage);
-
   let pevaraHasSentStickyEvent = false;
 
   const pevaraResolver = Promise.withResolvers<void>();
@@ -106,13 +102,7 @@ test("One to One rejoin after improper leave does not crash EC", async ({
   page,
   browserName,
 }) => {
-  // With delegation, the backend sends the guest's delayed leave event within
-  // moments of the improper leave, so the stale membership this test needs
-  // would be cleaned up before the rejoin. Keep the guest's leave
-  // client-managed so the stale membership lingers.
-  const { guestPage } = await setupTwoUserSpaCall(browser, page, browserName, {
-    disableGuestLeaveDelegation: true,
-  });
+  const { guestPage } = await setupTwoUserSpaCall(browser, page, browserName);
 
   await SpaHelpers.expectVideoTilesCount(page, 2);
   await SpaHelpers.expectVideoTilesCount(guestPage, 2);

playwright/spa-helpers.ts

@@ -111,24 +111,6 @@ async function setRtcModeFromSettings(
   await page.getByTestId("modal_close").click();
 }
 
-/**
- * Makes the delayed-leave delegation support probes fail so that the client
- * manages its delayed leave event itself instead of delegating it to the
- * backend.
- *
- * Must be installed before the page joins a call.
- */
-async function disableLeaveDelegation(page: Page): Promise<void> {
-  // Covers both the transport probe (<livekit_service_url>/delegate_delayed_leave)
-  // and the homeserver probe (MSC4195, .../rtc/livekit/delegate_delayed_leave).
-  await page.route("**/delegate_delayed_leave", async (route) =>
-    route.fulfill({
-      status: 404,
-      headers: { "Access-Control-Allow-Origin": "*" },
-    }),
-  );
-}
-
 /**
  * Expect a certain number of video tiles to be present and visible.
  */
@@ -151,6 +133,5 @@ export const SpaHelpers = {
   createCall,
   getCallInviteLink,
   joinCallFromInviteLink,
-  disableLeaveDelegation,
   expectVideoTilesCount,
 };

playwright/widget/test-helpers.ts

@@ -11,7 +11,6 @@ import {
   type JSHandle,
   type Page,
   type FrameLocator,
-  type Locator,
 } from "@playwright/test";
 import { type MatrixClient } from "matrix-js-sdk";
 
@@ -204,16 +203,6 @@ export class TestHelpers {
     }
   }
 
-  public static async expandAllSections(page: Page): Promise<void> {
-    try {
-      await page
-        .getByRole("button", { name: "Expand all sections" })
-        .click({ timeout: 2000 });
-    } catch {
-      // Already expanded or button not present
-    }
-  }
-
   public static async createRoom(
     name: string,
     page: Page,
@@ -264,9 +253,9 @@ export class TestHelpers {
     roomName: string,
     page: Page,
   ): Promise<void> {
-    await TestHelpers.closeReleaseAnnouncement(page, "Introducing Sections");
-    await TestHelpers.expandAllSections(page);
-    await TestHelpers.roomListItem(page, roomName).click({ timeout: 10000 });
+    await page.getByRole("option", { name: roomName }).click({
+      timeout: 10000,
+    });
     await page.getByRole("button", { name: "Accept" }).click({
       timeout: 5000,
     });
@@ -361,17 +350,6 @@ export class TestHelpers {
       .click();
   }
 
-  /**
-   * Locates a room in the room list by its name.
-   *
-   * Matches on the aria-label prefix because the item's role differs between
-   * the flat room list (`option`) and the sectioned room list (`button`), and
-   * the label may carry a suffix such as " invitation.".
-   */
-  public static roomListItem(page: Page, roomName: string): Locator {
-    return page.locator(`[aria-label^="Open room ${roomName}"]`);
-  }
-
   /**
    * Switches to a room in the room list by its name.
    * @param page - The EW page
@@ -381,8 +359,7 @@ export class TestHelpers {
     page: Page,
     roomName: string,
   ): Promise<void> {
-    await TestHelpers.expandAllSections(page);
-    await TestHelpers.roomListItem(page, roomName).click();
+    await page.getByRole("option", { name: `Open room ${roomName}` }).click();
   }
 
   public static async dismissInviteUnknownUserModal(page: Page): Promise<void> {

pnpm-lock.yaml

@@ -39,13 +39,13 @@ importers:
         version: 11.7.12
       '@livekit/components-core':
         specifier: ^0.12.0
-        version: 0.12.15(livekit-client@2.22.3(@types/dom-mediacapture-record@1.0.22))(tslib@2.8.1)
+        version: 0.12.15(livekit-client@2.22.2(@types/dom-mediacapture-record@1.0.22))(tslib@2.8.1)
       '@livekit/components-react':
         specifier: ^2.0.0
-        version: 2.9.24(livekit-client@2.22.3(@types/dom-mediacapture-record@1.0.22))(react-dom@19.2.8(react@19.2.8))(react@19.2.8)(tslib@2.8.1)
+        version: 2.9.24(livekit-client@2.22.2(@types/dom-mediacapture-record@1.0.22))(react-dom@19.2.8(react@19.2.8))(react@19.2.8)(tslib@2.8.1)
       '@livekit/track-processors':
         specifier: ^0.7.1
-        version: 0.7.2(@types/dom-mediacapture-transform@0.1.11)(livekit-client@2.22.3(@types/dom-mediacapture-record@1.0.22))
+        version: 0.7.2(@types/dom-mediacapture-transform@0.1.11)(livekit-client@2.22.2(@types/dom-mediacapture-record@1.0.22))
       '@mediapipe/tasks-vision':
         specifier: ^0.10.18
         version: 0.10.35
@@ -183,7 +183,7 @@ importers:
         version: 5.88.1(@emnapi/core@1.11.2)(@emnapi/runtime@1.11.2)(@types/node@24.13.3)(typescript@5.9.3)
       livekit-client:
         specifier: ^2.18.1
-        version: 2.22.3(@types/dom-mediacapture-record@1.0.22)
+        version: 2.22.2(@types/dom-mediacapture-record@1.0.22)
       lodash-es:
         specifier: ^4.17.21
         version: 4.18.1
@@ -4605,8 +4605,8 @@ packages:
   lines-and-columns@1.2.4:
     resolution: {integrity: sha512-7ylylesZQ/PV29jhEDl3Ufjo6ZX7gCqJr5F7PKrqc93v7fzSymt1BpwEU8nAUXs8qzzvqhbjhK5QZg6Mt/HkBg==}
 
-  livekit-client@2.22.3:
-    resolution: {integrity: sha512-jw9zBKXY5Gtr5MZ7vEON3QhMNccuDvYHck1PFSyG1aaateQPqgKZFBMgZkFZaXHIf9RV4MDW5xpTK2b/+qbwOg==}
+  livekit-client@2.22.2:
+    resolution: {integrity: sha512-o3yLYoH2eHVR/DmIZzgC96FMvtR4+g/DjeqNwS5zp12EjqrqiRULxm6Oq/YsTE97WnA6fhy23+a2hGkbce5SPA==}
     peerDependencies:
       '@types/dom-mediacapture-record': ^1
 
@@ -7079,21 +7079,21 @@ snapshots:
       '@jridgewell/resolve-uri': 3.1.2
       '@jridgewell/sourcemap-codec': 1.6.0
 
-  '@livekit/components-core@0.12.15(livekit-client@2.22.3(@types/dom-mediacapture-record@1.0.22))(tslib@2.8.1)':
+  '@livekit/components-core@0.12.15(livekit-client@2.22.2(@types/dom-mediacapture-record@1.0.22))(tslib@2.8.1)':
     dependencies:
       '@floating-ui/dom': 1.7.6
-      livekit-client: 2.22.3(@types/dom-mediacapture-record@1.0.22)
+      livekit-client: 2.22.2(@types/dom-mediacapture-record@1.0.22)
       loglevel: 1.9.1
       rxjs: 7.8.2
       tslib: 2.8.1
 
-  '@livekit/components-react@2.9.24(livekit-client@2.22.3(@types/dom-mediacapture-record@1.0.22))(react-dom@19.2.8(react@19.2.8))(react@19.2.8)(tslib@2.8.1)':
+  '@livekit/components-react@2.9.24(livekit-client@2.22.2(@types/dom-mediacapture-record@1.0.22))(react-dom@19.2.8(react@19.2.8))(react@19.2.8)(tslib@2.8.1)':
     dependencies:
-      '@livekit/components-core': 0.12.15(livekit-client@2.22.3(@types/dom-mediacapture-record@1.0.22))(tslib@2.8.1)
+      '@livekit/components-core': 0.12.15(livekit-client@2.22.2(@types/dom-mediacapture-record@1.0.22))(tslib@2.8.1)
       clsx: 2.1.1
       events: 3.3.0
       jose: 6.2.9
-      livekit-client: 2.22.3(@types/dom-mediacapture-record@1.0.22)
+      livekit-client: 2.22.2(@types/dom-mediacapture-record@1.0.22)
       react: 19.2.8
       react-dom: 19.2.8(react@19.2.8)
       tslib: 2.8.1
@@ -7105,11 +7105,11 @@ snapshots:
     dependencies:
       '@bufbuild/protobuf': 1.10.1
 
-  '@livekit/track-processors@0.7.2(@types/dom-mediacapture-transform@0.1.11)(livekit-client@2.22.3(@types/dom-mediacapture-record@1.0.22))':
+  '@livekit/track-processors@0.7.2(@types/dom-mediacapture-transform@0.1.11)(livekit-client@2.22.2(@types/dom-mediacapture-record@1.0.22))':
     dependencies:
       '@mediapipe/tasks-vision': 0.10.35
       '@types/dom-mediacapture-transform': 0.1.11
-      livekit-client: 2.22.3(@types/dom-mediacapture-record@1.0.22)
+      livekit-client: 2.22.2(@types/dom-mediacapture-record@1.0.22)
 
   '@matrix-org/matrix-sdk-crypto-wasm@18.5.0': {}
 
@@ -10180,7 +10180,7 @@ snapshots:
 
   lines-and-columns@1.2.4: {}
 
-  livekit-client@2.22.3(@types/dom-mediacapture-record@1.0.22):
+  livekit-client@2.22.2(@types/dom-mediacapture-record@1.0.22):
     dependencies:
       '@livekit/mutex': 1.1.1
       '@livekit/protocol': 1.50.4

src/UrlConfiguration.ts

@@ -1,242 +0,0 @@
-/*
-Copyright 2022-2024 New Vector Ltd.
-Copyright 2026 Element Creations Ltd.
-
-SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
-Please see LICENSE in the repository root for full details.
-*/
-
-/**
- * How Element Call can be told to behave, and what each intent means.
- *
- * Kept apart from {@link UrlParams} on purpose: everything here is constants,
- * types and one function of them, so that a host of the component can import
- * these — the enums it needs as values, the defaults an intent implies — without
- * loading Element Call itself. UrlParams, which reads them from a URL, needs
- * the router, the config and the rest of the app; this module must not.
- * `component/api.ts` is built from it as an entry point of its own.
- */
-
-import {
-  type RTCCallIntent,
-  type RTCNotificationType,
-} from "matrix-js-sdk/lib/matrixrtc";
-
-import { platform } from "./Platform";
-
-export enum UserIntent {
-  StartNewCall = "start_call",
-  JoinExistingCall = "join_existing",
-  StartNewCallVoice = "start_call_voice",
-  JoinExistingCallVoice = "join_existing_voice",
-  StartNewCallDM = "start_call_dm",
-  StartNewCallDMVoice = "start_call_dm_voice",
-  JoinExistingCallDM = "join_existing_dm",
-  JoinExistingCallDMVoice = "join_existing_dm_voice",
-  Unknown = "unknown",
-}
-
-export enum HeaderStyle {
-  None = "none",
-  Standard = "standard",
-  AppBar = "app_bar",
-}
-
-export enum BackgroundStyle {
-  Solid = "solid",
-  Gradient = "gradient",
-}
-
-/**
- * The configuration for the app, which can be set via URL parameters.
- * Those property are different to the UrlProperties, since they are all optional
- * and configure the behavior of the app. Their value is the same if EC is used in
- * the same context but with different accounts/users.
- *
- * Their defaults can be controlled by the `intent` property.
- */
-export interface UrlConfiguration {
-  /**
-   * Whether the app should keep the user confined to the current call/room.
-   */
-  confineToRoom: boolean;
-  /**
-   * Whether the app should pause before joining the call until it sees an
-   * io.element.join widget action, allowing it to be preloaded.
-   */
-  preload: boolean;
-  /**
-   * The style of headers to show. "standard" is the default arrangement, "none"
-   * hides the header entirely, and "app_bar" produces a header with a back
-   * button like you might see in mobile apps. The callback for the back button
-   * is window.controls.onBackButtonPressed.
-   */
-  header: HeaderStyle;
-  /**
-   * Whether the controls should be shown. For screen recording no controls can be desired.
-   */
-  showControls: boolean;
-  /**
-   * Whether to hide the screen-sharing button.
-   */
-  hideScreensharing: boolean;
-
-  /**
-   * Whether the app is allowed to use fallback STUN servers for ICE in case the
-   * user's homeserver doesn't provide any.
-   */
-  allowIceFallback: boolean;
-
-  /**
-   * Whether the app should use per participant keys for E2EE.
-   */
-  perParticipantE2EE: boolean;
-  /**
-   * Whether the global JS controls for audio output devices should be enabled,
-   * allowing the list of output devices to be controlled by the app hosting
-   * Element Call.
-   */
-  controlledAudioDevices: boolean;
-  /**
-   * Setting this flag skips the lobby and brings you in the call directly.
-   * In the widget this can be combined with preload to pass the device settings
-   * with the join widget action.
-   */
-  skipLobby: boolean;
-  /**
-   * Setting this flag makes element call show the lobby after leaving a call.
-   * This is useful for video rooms.
-   */
-  returnToLobby: boolean;
-  /**
-   * Whether and what type of notification EC should send, when the user joins the call.
-   */
-  sendNotificationType?: RTCNotificationType;
-  /**
-   * Whether the app should automatically leave the call when there
-   * is no one left in the call.
-   * This is one part to make the call matrixRTC session behave like a telephone call.
-   */
-  autoLeaveWhenOthersLeft: boolean;
-
-  /**
-   * If the client should behave like it is awaiting an answer if a notification was sent (wait for call pick up).
-   * This is a no-op if not combined with sendNotificationType.
-   *
-   * This entails:
-   *  - show ui that it is awaiting an answer
-   *  - play a sound that indicates that it is awaiting an answer
-   *  - auto-dismiss the call widget once the notification lifetime expires on the receivers side.
-   */
-  waitForCallPickup: boolean;
-
-  /**
-   * Whether to enable echo cancellation for audio capture.
-   * Defaults to true.
-   */
-  echoCancellation?: boolean;
-  /**
-   * Whether to enable noise suppression for audio capture.
-   * Defaults to true.
-   */
-  noiseSuppression?: boolean;
-
-  callIntent?: RTCCallIntent;
-}
-
-// If you need to add a new flag to this interface, prefer a name that describes
-// a specific behavior (such as 'confineToRoom'), rather than one that describes
-// the situations that call for this behavior ('isEmbedded'). This makes it
-// clearer what each flag means, and helps us avoid coupling Element Call's
-// behavior to the needs of specific consumers.
-
-/**
- * The configuration implied by what the user meant to do — if they pressed a
- * Start Call button this would be `start_call`, and if they pressed Join Call,
- * `join_existing`.
- *
- * These are platform-specific defaults, so that a host can start a call by
- * saying what the user asked for rather than by setting every parameter itself,
- * and so that what each intent means is Element Call's decision, made in one
- * place. A host that wants something else states it alongside the intent.
- *
- * {@link UserIntent.Unknown} means no intent was stated, and gives the
- * standalone app's defaults: Element Call owns the whole page, so it offers the
- * way out of the room that a hosted call must not.
- */
-export function configurationForIntent(intent: UserIntent): UrlConfiguration {
-  // Only constants and `platform` here, so that this depends on nothing but
-  // the intent.
-  let preset: UrlConfiguration = {
-    confineToRoom: true,
-    preload: false,
-    header: platform === "desktop" ? HeaderStyle.None : HeaderStyle.AppBar,
-    showControls: true,
-    hideScreensharing: false,
-    allowIceFallback: true,
-    perParticipantE2EE: true,
-    controlledAudioDevices: platform === "desktop" ? false : true,
-    skipLobby: true,
-    returnToLobby: false,
-    sendNotificationType: "notification",
-    autoLeaveWhenOthersLeft: false,
-    waitForCallPickup: false,
-  };
-  switch (intent) {
-    case UserIntent.StartNewCall:
-      preset.skipLobby = false;
-      preset.callIntent = "video";
-      break;
-    case UserIntent.JoinExistingCall:
-      // On desktop this will be overridden based on which button was used to join the call
-      preset.skipLobby = false;
-      preset.callIntent = "video";
-      break;
-    case UserIntent.StartNewCallVoice:
-      preset.skipLobby = false;
-      preset.callIntent = "audio";
-      break;
-    case UserIntent.JoinExistingCallVoice:
-      // On desktop this will be overridden based on which button was used to join the call
-      preset.skipLobby = false;
-      preset.callIntent = "audio";
-      break;
-    case UserIntent.StartNewCallDMVoice:
-      preset.callIntent = "audio";
-    // Fall through
-    case UserIntent.StartNewCallDM:
-      preset.skipLobby = true;
-      preset.sendNotificationType = "ring";
-      preset.autoLeaveWhenOthersLeft = true;
-      preset.waitForCallPickup = true;
-      preset.callIntent = preset.callIntent ?? "video";
-      break;
-    case UserIntent.JoinExistingCallDMVoice:
-      preset.callIntent = "audio";
-    // Fall through
-    case UserIntent.JoinExistingCallDM:
-      // On desktop this will be overridden based on which button was used to join the call
-      preset.skipLobby = true;
-      preset.autoLeaveWhenOthersLeft = true;
-      preset.callIntent = preset.callIntent ?? "video";
-      break;
-    // Non widget usecase defaults
-    default:
-      preset = {
-        confineToRoom: false,
-        preload: false,
-        header: HeaderStyle.Standard,
-        showControls: true,
-        hideScreensharing: false,
-        allowIceFallback: false,
-        perParticipantE2EE: false,
-        controlledAudioDevices: false,
-        skipLobby: false,
-        returnToLobby: false,
-        sendNotificationType: undefined,
-        autoLeaveWhenOthersLeft: false,
-        waitForCallPickup: false,
-      };
-  }
-  return preset;
-}

src/UrlParams.ts

@@ -9,36 +9,47 @@ Please see LICENSE in the repository root for full details.
 import { createContext, use, useMemo } from "react";
 import { useLocation } from "react-router-dom";
 import { logger } from "matrix-js-sdk/lib/logger";
+import {
+  type RTCCallIntent,
+  type RTCNotificationType,
+} from "matrix-js-sdk/lib/matrixrtc";
 import { pickBy } from "lodash-es";
 
 import { Config } from "./config/Config";
 import { type EncryptionSystem } from "./e2ee/sharedKeyManagement";
 import { E2eeType } from "./e2ee/e2eeType";
-import {
-  BackgroundStyle,
-  configurationForIntent,
-  HeaderStyle,
-  type UrlConfiguration,
-  UserIntent,
-} from "./UrlConfiguration";
+import { platform } from "./Platform";
 import { redact } from "./utils/redact";
 
-// Moved to their own module, so that a host can import them without the rest
-// of this one; re-exported here as they always were
-export {
-  BackgroundStyle,
-  configurationForIntent,
-  HeaderStyle,
-  type UrlConfiguration,
-  UserIntent,
-} from "./UrlConfiguration";
-
 interface RoomIdentifier {
   roomAlias: string | null;
   roomId: string | null;
   viaServers: string[];
 }
 
+export enum UserIntent {
+  StartNewCall = "start_call",
+  JoinExistingCall = "join_existing",
+  StartNewCallVoice = "start_call_voice",
+  JoinExistingCallVoice = "join_existing_voice",
+  StartNewCallDM = "start_call_dm",
+  StartNewCallDMVoice = "start_call_dm_voice",
+  JoinExistingCallDM = "join_existing_dm",
+  JoinExistingCallDMVoice = "join_existing_dm_voice",
+  Unknown = "unknown",
+}
+
+export enum HeaderStyle {
+  None = "none",
+  Standard = "standard",
+  AppBar = "app_bar",
+}
+
+export enum BackgroundStyle {
+  Solid = "solid",
+  Gradient = "gradient",
+}
+
 /**
  * The UrlProperties are used to pass required data to the widget.
  * Those are different in different rooms, users, devices. They do not configure the behavior of the
@@ -155,6 +166,109 @@ export interface UrlProperties {
    */
   background: BackgroundStyle;
 }
+
+/**
+ * The configuration for the app, which can be set via URL parameters.
+ * Those property are different to the UrlProperties, since they are all optional
+ * and configure the behavior of the app. Their value is the same if EC is used in
+ * the same context but with different accounts/users.
+ *
+ * Their defaults can be controlled by the `intent` property.
+ */
+export interface UrlConfiguration {
+  /**
+   * Whether the app should keep the user confined to the current call/room.
+   */
+  confineToRoom: boolean;
+  /**
+   * Whether the app should pause before joining the call until it sees an
+   * io.element.join widget action, allowing it to be preloaded.
+   */
+  preload: boolean;
+  /**
+   * The style of headers to show. "standard" is the default arrangement, "none"
+   * hides the header entirely, and "app_bar" produces a header with a back
+   * button like you might see in mobile apps. The callback for the back button
+   * is window.controls.onBackButtonPressed.
+   */
+  header: HeaderStyle;
+  /**
+   * Whether the controls should be shown. For screen recording no controls can be desired.
+   */
+  showControls: boolean;
+  /**
+   * Whether to hide the screen-sharing button.
+   */
+  hideScreensharing: boolean;
+
+  /**
+   * Whether the app is allowed to use fallback STUN servers for ICE in case the
+   * user's homeserver doesn't provide any.
+   */
+  allowIceFallback: boolean;
+
+  /**
+   * Whether the app should use per participant keys for E2EE.
+   */
+  perParticipantE2EE: boolean;
+  /**
+   * Whether the global JS controls for audio output devices should be enabled,
+   * allowing the list of output devices to be controlled by the app hosting
+   * Element Call.
+   */
+  controlledAudioDevices: boolean;
+  /**
+   * Setting this flag skips the lobby and brings you in the call directly.
+   * In the widget this can be combined with preload to pass the device settings
+   * with the join widget action.
+   */
+  skipLobby: boolean;
+  /**
+   * Setting this flag makes element call show the lobby after leaving a call.
+   * This is useful for video rooms.
+   */
+  returnToLobby: boolean;
+  /**
+   * Whether and what type of notification EC should send, when the user joins the call.
+   */
+  sendNotificationType?: RTCNotificationType;
+  /**
+   * Whether the app should automatically leave the call when there
+   * is no one left in the call.
+   * This is one part to make the call matrixRTC session behave like a telephone call.
+   */
+  autoLeaveWhenOthersLeft: boolean;
+
+  /**
+   * If the client should behave like it is awaiting an answer if a notification was sent (wait for call pick up).
+   * This is a no-op if not combined with sendNotificationType.
+   *
+   * This entails:
+   *  - show ui that it is awaiting an answer
+   *  - play a sound that indicates that it is awaiting an answer
+   *  - auto-dismiss the call widget once the notification lifetime expires on the receivers side.
+   */
+  waitForCallPickup: boolean;
+
+  /**
+   * Whether to enable echo cancellation for audio capture.
+   * Defaults to true.
+   */
+  echoCancellation?: boolean;
+  /**
+   * Whether to enable noise suppression for audio capture.
+   * Defaults to true.
+   */
+  noiseSuppression?: boolean;
+
+  callIntent?: RTCCallIntent;
+}
+
+// If you need to add a new flag to this interface, prefer a name that describes
+// a specific behavior (such as 'confineToRoom'), rather than one that describes
+// the situations that call for this behavior ('isEmbedded'). This makes it
+// clearer what each flag means, and helps us avoid coupling Element Call's
+// behavior to the needs of specific consumers.
 export interface UrlParams extends UrlProperties, UrlConfiguration {}
 
 class ParamParser {
@@ -240,6 +354,97 @@ export const getUrlParams = (
   return params;
 };
 
+/**
+ * The configuration implied by what the user meant to do — if they pressed a
+ * Start Call button this would be `start_call`, and if they pressed Join Call,
+ * `join_existing`.
+ *
+ * These are platform-specific defaults, so that a host can start a call by
+ * saying what the user asked for rather than by setting every parameter itself,
+ * and so that what each intent means is Element Call's decision, made in one
+ * place. A host that wants something else states it alongside the intent.
+ *
+ * {@link UserIntent.Unknown} means no intent was stated, and gives the
+ * standalone app's defaults: Element Call owns the whole page, so it offers the
+ * way out of the room that a hosted call must not.
+ */
+export function configurationForIntent(intent: UserIntent): UrlConfiguration {
+  // Only constants and `platform` here, so that this depends on nothing but
+  // the intent.
+  let preset: UrlConfiguration = {
+    confineToRoom: true,
+    preload: false,
+    header: platform === "desktop" ? HeaderStyle.None : HeaderStyle.AppBar,
+    showControls: true,
+    hideScreensharing: false,
+    allowIceFallback: true,
+    perParticipantE2EE: true,
+    controlledAudioDevices: platform === "desktop" ? false : true,
+    skipLobby: true,
+    returnToLobby: false,
+    sendNotificationType: "notification",
+    autoLeaveWhenOthersLeft: false,
+    waitForCallPickup: false,
+  };
+  switch (intent) {
+    case UserIntent.StartNewCall:
+      preset.skipLobby = false;
+      preset.callIntent = "video";
+      break;
+    case UserIntent.JoinExistingCall:
+      // On desktop this will be overridden based on which button was used to join the call
+      preset.skipLobby = false;
+      preset.callIntent = "video";
+      break;
+    case UserIntent.StartNewCallVoice:
+      preset.skipLobby = false;
+      preset.callIntent = "audio";
+      break;
+    case UserIntent.JoinExistingCallVoice:
+      // On desktop this will be overridden based on which button was used to join the call
+      preset.skipLobby = false;
+      preset.callIntent = "audio";
+      break;
+    case UserIntent.StartNewCallDMVoice:
+      preset.callIntent = "audio";
+    // Fall through
+    case UserIntent.StartNewCallDM:
+      preset.skipLobby = true;
+      preset.sendNotificationType = "ring";
+      preset.autoLeaveWhenOthersLeft = true;
+      preset.waitForCallPickup = true;
+      preset.callIntent = preset.callIntent ?? "video";
+      break;
+    case UserIntent.JoinExistingCallDMVoice:
+      preset.callIntent = "audio";
+    // Fall through
+    case UserIntent.JoinExistingCallDM:
+      // On desktop this will be overridden based on which button was used to join the call
+      preset.skipLobby = true;
+      preset.autoLeaveWhenOthersLeft = true;
+      preset.callIntent = preset.callIntent ?? "video";
+      break;
+    // Non widget usecase defaults
+    default:
+      preset = {
+        confineToRoom: false,
+        preload: false,
+        header: HeaderStyle.Standard,
+        showControls: true,
+        hideScreensharing: false,
+        allowIceFallback: false,
+        perParticipantE2EE: false,
+        controlledAudioDevices: false,
+        skipLobby: false,
+        returnToLobby: false,
+        sendNotificationType: undefined,
+        autoLeaveWhenOthersLeft: false,
+        waitForCallPickup: false,
+      };
+  }
+  return preset;
+}
+
 /**
  * The {@link UrlProperties} for Element Call running as a component inside a
  * host application.

src/initializer.tsx

@@ -25,7 +25,6 @@ import {
 import {
   setLogExtension as setLKLogExtension,
   setLogLevel as setLKLogLevel,
-  LoggerNames as LKLoggerNames,
 } from "livekit-client";
 
 import { getUrlParams } from "./UrlParams";
@@ -227,9 +226,6 @@ export class Initializer {
 
     enableExtendedLivekitLogs.value$.subscribe((enabled) => {
       setLKLogLevel(enabled ? "trace" : "info");
-      // ICE candidate types and connection states are what you need to diagnose
-      // "could not establish pc connection", so always keep those in the rageshake
-      setLKLogLevel("debug", LKLoggerNames.ICE);
     });
 
     window.setLKLogLevel = setLKLogLevel;

src/livekit/MatrixAudioRenderer.test.tsx

@@ -24,12 +24,10 @@ import { testAudioContext } from "../useAudioContext.test";
 import * as MediaDevicesContext from "../MediaDevicesContext";
 import { LivekitRoomAudioRenderer } from "./MatrixAudioRenderer";
 import {
-  mockLocalParticipant,
   mockMediaDevices,
   mockRemoteParticipant,
   mockTrack,
 } from "../utils/test";
-import { logger as rootLogger } from "matrix-js-sdk/lib/logger";
 import { initializeWidget } from "../widget";
 initializeWidget();
 export const TestAudioContextConstructor = vi.fn(
@@ -133,57 +131,6 @@ it("should render for member", () => {
   expect(queryAllByTestId("audio")).toHaveLength(1);
 });
 
-function spyOnWarn(): ReturnType<typeof vi.fn> {
-  const warn = vi.fn();
-  vi.spyOn(rootLogger, "getChild").mockReturnValue({
-    warn,
-  } as unknown as typeof rootLogger);
-  return warn;
-}
-
-it("should not render or warn for the local participant", () => {
-  const warn = spyOnWarn();
-  const local = mockLocalParticipant({ identity: "@alice:DEV0" });
-  vi.mocked(useTracks).mockReturnValue([mockTrack(local)]);
-  const { queryAllByTestId } = render(
-    <MediaDevicesProvider value={mockMediaDevices({})}>
-      <LivekitRoomAudioRenderer
-        validIdentities={[]}
-        livekitRoom={{ remoteParticipants: new Map() } as unknown as Room}
-        url={""}
-      />
-    </MediaDevicesProvider>,
-  );
-  expect(queryAllByTestId("audio")).toHaveLength(0);
-  expect(warn).not.toHaveBeenCalled();
-});
-
-it("should warn only once per unexpected participant", () => {
-  const warn = spyOnWarn();
-  const { rerender } = renderTestComponent(
-    [{ userId: "@bob", deviceId: "DEV0" }],
-    ["@alice:DEV0"],
-    [
-      {
-        participantId: "@alice:DEV0",
-        kind: Track.Kind.Audio,
-        source: Track.Source.Microphone,
-      },
-    ],
-  );
-  expect(warn).toHaveBeenCalledTimes(1);
-  rerender(
-    <MediaDevicesProvider value={mockMediaDevices({})}>
-      <LivekitRoomAudioRenderer
-        validIdentities={[]}
-        livekitRoom={{ remoteParticipants: new Map() } as unknown as Room}
-        url={""}
-      />
-    </MediaDevicesProvider>,
-  );
-  expect(warn).toHaveBeenCalledTimes(1);
-});
-
 it("should not render without member", () => {
   const { container, queryAllByTestId } = renderTestComponent(
     [{ userId: "@bob", deviceId: "DEV0" }],

src/livekit/MatrixAudioRenderer.tsx

@@ -8,7 +8,7 @@ Please see LICENSE in the repository root for full details.
 import { getTrackReferenceId } from "@livekit/components-core";
 import { type Room as LivekitRoom } from "livekit-client";
 import { type RemoteAudioTrack, Track } from "livekit-client";
-import { useEffect, useMemo, useRef, useState, type ReactNode } from "react";
+import { useEffect, useMemo, useState, type ReactNode } from "react";
 import {
   useTracks,
   AudioTrack,
@@ -60,9 +60,6 @@ export function LivekitRoomAudioRenderer({
   muted,
 }: MatrixAudioRendererProps): ReactNode {
   const logger = rootLogger.getChild("[MatrixAudioRenderer]");
-  // Identities we have already warned about, so that re-renders (which happen
-  // on every active speaker update) don't repeat the warning.
-  const warnedIdentities = useRef(new Set<string>());
   const tracks = useTracks(
     [
       Track.Source.Microphone,
@@ -75,27 +72,22 @@ export function LivekitRoomAudioRenderer({
       room: livekitRoom,
     },
   )
-    // Only keep remote audio tracks (we never render our own audio)
-    .filter(
-      (ref) =>
-        ref.publication.kind === Track.Kind.Audio && !ref.participant.isLocal,
-    )
+    // Only keep audio tracks
+    .filter((ref) => ref.publication.kind === Track.Kind.Audio)
     // Only keep tracks from participants that are in the validIdentities list
     .filter((ref) => {
-      const { identity } = ref.participant;
-      const isValid = validIdentities.includes(identity);
-      if (!isValid && !warnedIdentities.current.has(identity)) {
-        warnedIdentities.current.add(identity);
+      const isValid = validIdentities.includes(ref.participant.identity);
+      if (!isValid) {
+        // TODO make sure to also skip the warn logging for the local identity
         // Log that there is an invalid identity, that means that someone is publishing audio that is not expected to be in the call.
         logger.warn(
-          `Audio track ${identity} from ${url} has no matching matrix call member`,
+          `Audio track ${ref.participant.identity} from ${url} has no matching matrix call member`,
           `current members: ${validIdentities.join()}`,
           `track will not get rendered`,
         );
-      } else if (isValid) {
-        warnedIdentities.current.delete(identity);
+        return false;
       }
-      return isValid;
+      return true;
     });
 
   // This component is also (in addition to the "only play audio for connected members" logic above)

src/livekit/TrackProcessorContext.test.ts

@@ -1,87 +0,0 @@
-/*
-Copyright 2026 Element Creations Ltd.
-
-SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
-Please see LICENSE in the repository root for full details.
-*/
-
-import { describe, expect, it, vi } from "vitest";
-import { type LocalVideoTrack } from "livekit-client";
-import {
-  type BackgroundOptions,
-  type ProcessorWrapper,
-} from "@livekit/track-processors";
-
-import { applyProcessor, trackProcessorSync } from "./TrackProcessorContext";
-import { constant } from "../state/Behavior";
-import { flushPromises, testScope } from "../utils/test";
-
-const processor = {} as ProcessorWrapper<BackgroundOptions>;
-
-function mockTrack(
-  readyState: MediaStreamTrackState,
-  current?: ProcessorWrapper<BackgroundOptions>,
-): LocalVideoTrack {
-  return {
-    mediaStreamTrack: { readyState },
-    getProcessor: vi.fn().mockReturnValue(current),
-    setProcessor: vi.fn().mockResolvedValue(undefined),
-    stopProcessor: vi.fn().mockResolvedValue(undefined),
-  } as unknown as LocalVideoTrack;
-}
-
-describe("applyProcessor", () => {
-  it("attaches the processor to a live track", () => {
-    const track = mockTrack("live");
-    applyProcessor(track, processor);
-    expect(track.setProcessor).toHaveBeenCalledWith(processor);
-  });
-
-  it("does not attach the processor to an ended track", () => {
-    const track = mockTrack("ended");
-    applyProcessor(track, processor);
-    expect(track.setProcessor).not.toHaveBeenCalled();
-  });
-
-  it("does not surface a rejected setProcessor", async () => {
-    const track = mockTrack("live");
-    vi.mocked(track.setProcessor).mockRejectedValue(
-      new TypeError("Input track cannot be ended"),
-    );
-    const unhandled = vi.fn();
-    process.on("unhandledRejection", unhandled);
-    applyProcessor(track, processor);
-    await flushPromises();
-    process.off("unhandledRejection", unhandled);
-    expect(unhandled).not.toHaveBeenCalled();
-  });
-
-  it("stops the processor when none is wanted", () => {
-    const track = mockTrack("live", processor);
-    applyProcessor(track, undefined);
-    expect(track.stopProcessor).toHaveBeenCalled();
-  });
-
-  it("does not surface a rejected stopProcessor", async () => {
-    const track = mockTrack("live", processor);
-    vi.mocked(track.stopProcessor).mockRejectedValue(new Error("nope"));
-    const unhandled = vi.fn();
-    process.on("unhandledRejection", unhandled);
-    applyProcessor(track, undefined);
-    await flushPromises();
-    process.off("unhandledRejection", unhandled);
-    expect(unhandled).not.toHaveBeenCalled();
-  });
-});
-
-describe("trackProcessorSync", () => {
-  it("applies the processor to the current track", () => {
-    const track = mockTrack("live");
-    trackProcessorSync(
-      testScope(),
-      constant(track),
-      constant({ supported: true, processor }),
-    );
-    expect(track.setProcessor).toHaveBeenCalledWith(processor);
-  });
-});

src/livekit/TrackProcessorContext.tsx

@@ -19,7 +19,6 @@ import {
   useMemo,
 } from "react";
 import { type LocalVideoTrack } from "livekit-client";
-import { logger } from "matrix-js-sdk/lib/logger";
 import { combineLatest, map, type Observable } from "rxjs";
 import { useObservable } from "observable-hooks";
 
@@ -66,34 +65,6 @@ export function useTrackProcessorObservable$(): Observable<ProcessorState> {
   return state$;
 }
 
-/**
- * Attaches or detaches the processor so that the track matches the desired
- * state, without throwing.
- */
-export function applyProcessor(
-  videoTrack: LocalVideoTrack,
-  processor: ProcessorWrapper<BackgroundOptions> | undefined,
-): void {
-  if (processor && !videoTrack.getProcessor()) {
-    // A MediaStreamTrackProcessor cannot be constructed on an ended track
-    // (e.g. the camera was stopped while the processor was being applied),
-    // and setProcessor rejects with a TypeError. The track is going away
-    // anyway, so there is nothing to attach to.
-    if (videoTrack.mediaStreamTrack.readyState === "ended") {
-      logger.debug("Not attaching video processor to an ended track");
-      return;
-    }
-    videoTrack.setProcessor(processor).catch((e) => {
-      logger.warn("Failed to attach video processor", e);
-    });
-  }
-  if (!processor && videoTrack.getProcessor()) {
-    videoTrack.stopProcessor().catch((e) => {
-      logger.warn("Failed to stop video processor", e);
-    });
-  }
-}
-
 /**
  * Updates your video tracks to always use the given processor.
  */
@@ -107,7 +78,13 @@ export const trackProcessorSync = (
     .subscribe(([videoTrack, processorState]) => {
       if (!processorState) return;
       if (!videoTrack) return;
-      applyProcessor(videoTrack, processorState.processor);
+      const { processor } = processorState;
+      if (processor && !videoTrack.getProcessor()) {
+        void videoTrack.setProcessor(processor);
+      }
+      if (!processor && videoTrack.getProcessor()) {
+        void videoTrack.stopProcessor();
+      }
     });
 };
 
@@ -117,7 +94,12 @@ export const useTrackProcessorSync = (
   const { processor } = useTrackProcessor();
   useEffect(() => {
     if (!videoTrack) return;
-    applyProcessor(videoTrack, processor);
+    if (processor && !videoTrack.getProcessor()) {
+      void videoTrack.setProcessor(processor);
+    }
+    if (!processor && videoTrack.getProcessor()) {
+      void videoTrack.stopProcessor();
+    }
   }, [processor, videoTrack]);
 };
 

src/state/AudioOutput.test.ts

@@ -10,7 +10,6 @@ import * as ComponentsCore from "@livekit/components-core";
 
 import { ObservableScope } from "./ObservableScope";
 import { AudioOutput } from "./MediaDevices";
-import { audioOutput as audioOutputSetting } from "../settings/settings";
 import { withTestScheduler } from "../utils/test";
 
 const BT_SPEAKER = {
@@ -94,8 +93,6 @@ describe("AudioOutput Tests", () => {
 
   beforeEach(() => {
     testScope = new ObservableScope();
-    // Device preferences persist in localStorage across tests
-    audioOutputSetting.setValue(undefined);
   });
 
   afterEach(() => {
@@ -153,9 +150,7 @@ describe("AudioOutput Tests", () => {
 
       expectObservable(audioOutput.selected$).toBe("abcde", {
         a: undefined,
-        // No "default" pseudo-device (Firefox): the virtual browser default is
-        // selected until the user picks something.
-        b: { id: "", virtualEarpiece: false },
+        b: { id: LAPTOP_SPEAKER.deviceId, virtualEarpiece: false },
         c: { id: MONITOR_SPEAKER.deviceId, virtualEarpiece: false },
         d: { id: LAPTOP_SPEAKER.deviceId, virtualEarpiece: false },
         e: { id: MONITOR_SPEAKER.deviceId, virtualEarpiece: false },
@@ -163,61 +158,6 @@ describe("AudioOutput Tests", () => {
     });
   });
 
-  it("falls back to the browser default when the selected device disappears", () => {
-    withTestScheduler(({ behavior, cold, schedule, expectObservable }) => {
-      vi.mocked(ComponentsCore.createMediaDeviceObserver).mockReturnValue(
-        cold("a---b", {
-          a: DEVICE_LIST_B,
-          // The monitor is unplugged (or a Bluetooth sink changes profile)
-          b: [LAPTOP_SPEAKER],
-        }),
-      );
-
-      const audioOutput = new AudioOutput(
-        behavior("a", { a: true }),
-        testScope,
-      );
-
-      schedule("--a", {
-        a: () => audioOutput.select(MONITOR_SPEAKER.deviceId),
-      });
-
-      expectObservable(audioOutput.selected$).toBe("a-b-c", {
-        a: { id: "", virtualEarpiece: false },
-        b: { id: MONITOR_SPEAKER.deviceId, virtualEarpiece: false },
-        // Rather than pinning some other physical device, let the browser route
-        c: { id: "", virtualEarpiece: false },
-      });
-    });
-  });
-
-  it("lists the virtual browser default first when there is no default pseudo-device", () => {
-    withTestScheduler(({ behavior, cold, expectObservable }) => {
-      vi.mocked(ComponentsCore.createMediaDeviceObserver).mockReturnValue(
-        cold("a", { a: DEVICE_LIST_B }),
-      );
-
-      const audioOutput = new AudioOutput(
-        behavior("a", { a: true }),
-        testScope,
-      );
-
-      expectObservable(audioOutput.available$).toBe("a", {
-        a: new Map([
-          ["", { type: "default", name: null }],
-          [
-            LAPTOP_SPEAKER.deviceId,
-            { type: "name", name: LAPTOP_SPEAKER.label },
-          ],
-          [
-            MONITOR_SPEAKER.deviceId,
-            { type: "name", name: MONITOR_SPEAKER.label },
-          ],
-        ]),
-      });
-    });
-  });
-
   it("Test mappings", () => {
     // In a real life setup there would be first a blanked list
     // then the real one.

src/state/CallViewModel/remoteMembers/Connection.test.ts

@@ -394,34 +394,6 @@ describe("Start connection states", () => {
     expect(connectedState).toEqual(ConnectionState.LivekitConnected);
   });
 
-  it("stopping while connecting does not report an error", async () => {
-    setupTest();
-    const connection = setupRemoteConnection();
-
-    const capturedStates: (ConnectionState | Error)[] = [];
-    const s = connection.state$.subscribe((value) => {
-      capturedStates.push(value);
-    });
-    onTestFinished(() => s.unsubscribe());
-
-    // livekit-client rejects a pending connect() when disconnect() is called.
-    const pendingConnect = Promise.withResolvers<void>();
-    fakeLivekitRoom.connect.mockReturnValue(pendingConnect.promise);
-    fakeLivekitRoom.disconnect.mockResolvedValue(undefined);
-
-    const started = connection.start();
-    await vi.waitFor(() => expect(fakeLivekitRoom.connect).toHaveBeenCalled());
-    const stopping = connection.stop();
-    pendingConnect.reject(new Error("Client initiated disconnect"));
-    await stopping;
-
-    // start() resolves rather than rejecting (it is not awaited by the
-    // ConnectionManager, so a rejection would be unhandled).
-    await expect(started).resolves.toBeUndefined();
-    expect(capturedStates.at(-1)).toEqual(ConnectionState.Stopped);
-    expect(capturedStates.some((st) => st instanceof Error)).toBe(false);
-  });
-
   it("shutting down the scope should stop the connection", async () => {
     setupTest();
     vi.useFakeTimers();

src/state/CallViewModel/remoteMembers/Connection.ts

@@ -373,15 +373,6 @@ export class Connection {
       // If we were stopped while connecting, don't proceed to update state.
       if (this.stopped) return;
     } catch (error) {
-      if (this.stopped) {
-        // stop() was called while we were connecting, which makes the pending
-        // connect reject. That is the abort we asked for, not a failure, so
-        // don't record an error state on a stopped connection or rethrow it
-        // (start() is not awaited by the ConnectionManager, so a throw here
-        // becomes an unhandled promise rejection).
-        this.logger.debug(`Connect aborted because the connection was stopped`);
-        return;
-      }
       this.logger.debug(`Failed to connect to LiveKit room: ${error}`);
       this._state$.next(
         error instanceof ElementCallError
@@ -420,11 +411,9 @@ export class Connection {
       `stop: disconnecing from lk room ${this.transport.livekit_service_url}`,
     );
     if (this.stopped) return;
-    // Mark as stopped before disconnecting so that a connect() aborted by the
-    // disconnect sees the flag and does not report the abort as an error.
-    this.stopped = true;
     await this.livekitRoom.disconnect();
     this._state$.next(ConnectionState.Stopped);
+    this.stopped = true;
     this.logger.debug(
       `stop: DONE disconnecing from lk room ${this.transport.livekit_service_url}`,
     );

src/state/MediaDevices.ts

@@ -257,21 +257,14 @@ export class AudioOutput implements MediaDevice<
       map((availableRaw) => {
         let available: Map<string, AudioOutputDeviceLabel> =
           buildDeviceMap(availableRaw);
-        // Create a virtual default audio output for browsers that don't have one
-        // (Firefox, Safari). Its device ID must be the empty string because
-        // that's what setSinkId recognizes. It goes first so that it is the
-        // fallback when no output has been explicitly chosen (or the chosen
-        // one disappears), rather than pinning the first physical device
-        // with setSinkId: pinned sinks are not re-routed by the browser, and
-        // Firefox leaves the audio elements silent when a pinned sink goes
-        // away (e.g. a Bluetooth headset switching profile when its
-        // microphone is opened). We can't know which physical device the
-        // browser default resolves to, so the entry carries no name.
+        // Create a virtual default audio output for browsers that don't have one.
+        // Its device ID must be the empty string because that's what setSinkId
+        // recognizes.
         if (available.size && !available.has("") && !available.has("default"))
-          available = new Map<string, AudioOutputDeviceLabel>([
-            ["", { type: "default", name: null }],
-            ...available,
-          ]);
+          available.set("", {
+            type: "default",
+            name: availableRaw[0]?.label || null,
+          });
         // eslint-disable-next-line @typescript-eslint/no-explicit-any
         const isSafari = !!(window as any).GestureEvent; // non standard api only found on Safari. https://developer.mozilla.org/en-US/docs/Web/API/GestureEvent#browser_compatibility
         if (isSafari) {

vite-component.config.ts

@@ -49,19 +49,8 @@ export default defineConfig(({ mode }) => {
       cssCodeSplit: false,
       lib: {
         formats: ["es" as const],
-        entry: {
-          // The component
-          "element-call": "./component/index.tsx",
-          // What a host needs to talk about it, without it (see component/api.ts).
-          // Built as an entry point of its own so that importing it does not
-          // load the component: the bundler gives it a chunk that reaches only
-          // what it imports.
-          api: "./component/api.ts",
-        },
-        fileName: (_format, entryName) => `${entryName}.js`,
-        // The one stylesheet (see cssCodeSplit) keeps the name it had when the
-        // component was the only entry
-        cssFileName: "element-call",
+        entry: "./component/index.tsx",
+        fileName: "element-call",
       },
       rollupOptions: {
         // The host already has these, and a second copy of any of them does not