Working seshat building on Windows

riot.im/config.json

@@ -1,5 +1,4 @@
 {
-    "update_base_url": "https://packages.riot.im/desktop/update/",
     "default_server_name": "matrix.org",
     "brand": "Riot",
     "integrations_ui_url": "https://scalar.vector.im/",
@@ -31,7 +30,8 @@
         }
     },
     "features": {
-        "feature_lazyloading": "enable"
+        "feature_lazyloading": "enable",
+        "feature_event_indexing": "labs"
     },
     "enable_presence_by_hs_url": {
         "https://matrix.org": false,