diff --git a/src/platform/types/config.ts b/src/platform/types/config.ts
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+++ b/src/platform/types/config.ts
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+/*
+Copyright 2022 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+export type Config = {
+    /**
+     * The default homeserver used by Hydrogen; auto filled in the login UI.
+     * eg: https://matrix.org
+     * REQUIRED
+     */
+    defaultHomeServer: string;
+    /**
+     * The submit endpoint for your preferred rageshake server.
+     * eg: https://element.io/bugreports/submit
+     * Read more about rageshake at https://github.com/matrix-org/rageshake
+     * OPTIONAL
+     */
+    bugReportEndpointUrl?: string;
+    /**
+     * Paths to theme-manifests
+     * eg: ["assets/theme-element.json", "assets/theme-awesome.json"]
+     * REQUIRED
+     */
+    themeManifests: string[];
+    /**
+     * This configures the default theme(s) used by Hydrogen.
+     * These themes appear as "Default" option in the theme chooser UI and are also
+     * used as a fallback when other themes fail to load.
+     * Whether the dark or light variant is used depends on the system preference.
+     * OPTIONAL
+     */
+    defaultTheme?: {
+        // id of light theme
+        light: string;
+        // id of dark theme
+        dark: string;
+    };
+    /**
+     * Configuration for push notifications.
+     * See https://spec.matrix.org/latest/client-server-api/#post_matrixclientv3pushersset
+     * and https://github.com/matrix-org/sygnal/blob/main/docs/applications.md#webpush
+     * OPTIONAL
+     */
+    push?: {
+        // See app_id in the request body in above link
+        appId: string;
+        // The host used for pushing notification
+        gatewayUrl: string;
+        // See pushkey in above link
+        applicationServerKey: string;
+    };
+};