diff --git a/CHANGELOG.md b/CHANGELOG.md
index 891071cc..d9c33ca9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,27 @@
 # 2018-11-03
 
+## Customize parts of Riot's config
+
+You can now customize some parts of Riot's `config.json`. These playbook variables, with these default values, have been added:
+
+```
+matrix_riot_web_disable_custom_urls: true
+matrix_riot_web_disable_guests: true
+matrix_riot_web_integrations_ui_url: "https://scalar.vector.im/"
+matrix_riot_web_integrations_rest_url: "https://scalar.vector.im/api"
+matrix_riot_web_integrations_widgets_urls: "https://scalar.vector.im/api"
+matrix_riot_web_integrations_jitsi_widget_url: "https://scalar.vector.im/api/widgets/jitsi.html"
+```
+
+This now allows you use a custom integrations manager like [Dimesion](https://dimension.t2bot.io). For example, if you wish to use the Dimension instance hosted at dimension.t2bot.io, you can set the following in your vars.yml file:
+
+```
+matrix_riot_web_integrations_ui_url: "https://dimension.t2bot.io/riot"
+matrix_riot_web_integrations_rest_url: "https://dimension.t2bot.io/api/v1/scalar"
+matrix_riot_web_integrations_widgets_urls: "https://dimension.t2bot.io/widgets"
+matrix_riot_web_integrations_jitsi_widget_url: "https://dimension.t2bot.io/widgets/jitsi"
+```
+
 ## SSL protocols used to serve Riot and Synapse
 
 There's now a new `matrix_nginx_proxy_ssl_protocols` playbook variable, which controls the SSL protocols used to serve Riot and Synapse. Its default value is `TLSv1.1 TLSv1.2`. This playbook previously used `TLSv1 TLSv1.1 TLSv1.2` to serve Riot and Synapse.
diff --git a/roles/matrix-server/defaults/main.yml b/roles/matrix-server/defaults/main.yml
index 9ab03872..59a21336 100644
--- a/roles/matrix-server/defaults/main.yml
+++ b/roles/matrix-server/defaults/main.yml
@@ -247,6 +247,14 @@ matrix_riot_web_docker_image: "avhost/docker-matrix-riot:v0.17.3"
 
 matrix_riot_web_data_path: "{{ matrix_base_data_path }}/riot-web"
 
+# Riot config.json customizations
+matrix_riot_web_disable_custom_urls: true
+matrix_riot_web_disable_guests: true
+matrix_riot_web_integrations_ui_url: "https://scalar.vector.im/"
+matrix_riot_web_integrations_rest_url: "https://scalar.vector.im/api"
+matrix_riot_web_integrations_widgets_urls: "https://scalar.vector.im/api"
+matrix_riot_web_integrations_jitsi_widget_url: "https://scalar.vector.im/api/widgets/jitsi.html"
+
 
 
 # Matrix mautrix is a Matrix <-> Telegram bridge
diff --git a/roles/matrix-server/templates/riot-web/config.json.j2 b/roles/matrix-server/templates/riot-web/config.json.j2
index 37d62f8d..98939986 100644
--- a/roles/matrix-server/templates/riot-web/config.json.j2
+++ b/roles/matrix-server/templates/riot-web/config.json.j2
@@ -1,11 +1,13 @@
 {
     "default_hs_url": "{{ matrix_homeserver_url }}",
     "default_is_url": "{{ matrix_identity_server_url }}",
-    "disable_custom_urls": true,
-    "disable_guests": true,
+    "disable_custom_urls": {{ matrix_riot_web_disable_custom_urls|lower }},
+    "disable_guests": {{ matrix_riot_web_disable_guests|lower }},
     "brand": "Riot",
-    "integrations_ui_url": "https://scalar.vector.im/",
-    "integrations_rest_url": "https://scalar.vector.im/api",
+    "integrations_ui_url": "{{ matrix_riot_web_integrations_ui_url }}",
+    "integrations_rest_url": "{{ matrix_riot_web_integrations_rest_url }}",
+    "integrations_widgets_urls": "{{ matrix_riot_web_integrations_widgets_urls }}",
+    "integrations_jitsi_widget_url": "{{ matrix_riot_web_integrations_jitsi_widget_url }}",
     "bug_report_endpoint_url": "https://riot.im/bugreports/submit",
     "enableLabs": true,
     "roomDirectory": {
@@ -14,4 +16,4 @@
         ]
     },
     "welcomeUserId": "@riot-bot:matrix.org"
-}
\ No newline at end of file
+}