diff --git a/packages/core/config.d.ts b/packages/core/config.d.ts
new file mode 100644
index 0000000000..014e4ac934
--- /dev/null
+++ b/packages/core/config.d.ts
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2020 Spotify AB
+ *
+ * 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 interface Config {
+  /**
+   * Generic frontend configuration.
+   */
+  app: {
+    /**
+     * The public absolute root URL that the frontend.
+     * @visibility frontend
+     */
+    baseUrl: string;
+
+    /**
+     * The title of the app.
+     * @visibility frontend
+     */
+    title?: string;
+  };
+
+  /**
+   * Generic backend configuration.
+   */
+  backend: {
+    /**
+     * The public absolute root URL that the backend is reachable at.
+     * @visibility frontend
+     */
+    baseUrl: string;
+  };
+
+  /**
+   * Configuration that provides information about the organization that the app is for.
+   */
+  organization?: {
+    /**
+     * The name of the organization that the app belongs to.
+     * @visibility frontend
+     */
+    name?: string;
+  };
+
+  homepage?: {
+    clocks?: {
+      /** @visibility frontend */
+      label: string;
+      /** @visibility frontend */
+      timezone: string;
+    }[];
+  };
+}
diff --git a/packages/core/package.json b/packages/core/package.json
index 3d4b53d35b..d0b623ea83 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -79,55 +79,8 @@
     "@types/zen-observable": "^0.8.0"
   },
   "files": [
-    "dist"
+    "dist",
+    "config.d.ts"
   ],
-  "configSchema": {
-    "$schema": "https://backstage.io/schema/config-v1",
-    "title": "@backstage/core",
-    "type": "object",
-    "properties": {
-      "app": {
-        "type": "object",
-        "properties": {
-          "title": {
-            "type": "string",
-            "visibility": "frontend"
-          },
-          "baseUrl": {
-            "type": "string",
-            "visibility": "frontend"
-          }
-        },
-        "required": [
-          "title",
-          "baseUrl"
-        ]
-      },
-      "backend": {
-        "type": "object",
-        "properties": {
-          "baseUrl": {
-            "type": "string",
-            "visibility": "frontend"
-          }
-        },
-        "required": [
-          "baseUrl"
-        ]
-      },
-      "organization": {
-        "type": "object",
-        "properties": {
-          "name": {
-            "type": "string",
-            "visibility": "frontend"
-          }
-        }
-      }
-    },
-    "required": [
-      "app",
-      "backend"
-    ]
-  }
+  "configSchema": "config.d.ts"
 }