Add documentation for adding a widget icon

content/development/_index.md

@@ -0,0 +1,11 @@
++++
+title = "Development"
+description = "Development documentation for the Cockpit Control Station Software."
+template = "docs/section.html"
+sort_by = "weight"
+weight = 2
+draft = false
+insert_anchor_links = "left"
+
+redirect_to = "development/overview"
++++

content/development/overview/index.md

@@ -0,0 +1,21 @@
++++
+title = "Overview"
+description = "Cockpit development overview."
+date = 2026-05-07T16:29:59+02:00
+template = "docs/page.html"
+sort_by = "weight"
+weight = 0
+draft = false
+
+[extra]
+lead = 'The development documentation describes how to expand Cockpit with your own features.'
+toc = true
+top = false
++++
+
+## Contributing
+Cockpit is an open source project that welcomes contributions. Check out the the GitHub repository [here](https://github.com/bluerobotics/cockpit). You can contribute to Cockpit in different ways:
+- 🐛 Bug Reports: Help us improve by reporting issues
+- 💡 Feature Requests: Suggest new capabilities
+- 🔧 Code Contributions: Submit pull requests
+- 📝 Documentation: Improve our [docs](https://blueos.cloud/cockpit/docs) and examples

content/usage/advanced/index.md

@@ -624,45 +624,7 @@ Configuration determines the URL to fetch the page from, as well as the overall
 
 ###### Automatic External IFrames
 
-As of BlueOS 1.4, HTTP Servers that provide a `register_service` endpoint (e.g. 
-[BlueOS Extensions](https://blueos.cloud/docs/latest/development/extensions/#web-interface-http-server)) 
-can provide one or more URLs for Cockpit to automatically detect and present as External IFrame widgets:
-
-{{ easy_image(src="external-widget-example", width=200) }}
-
-The `register_service` endpoint should include a `"cockpit"` key in its `"extras"` dictionary, pointing to
-an endpoint listing the available widgets:
-
-`/register_service`
-```json
-{
-   ...
-   "extras":{
-      "cockpit":"/cockpit_extras.json"
-   }
-}
-```
-
-The Cockpit-focused endpoint should including a name, version, iframe URL, and an optional URL for
-configuration of each widget:
-
-`cockpit_extras.json`
-```json
-{
-   "target_system":"Cockpit",
-   "target_cockpit_api_version":"1.0.0",
-   "widgets":[
-      {
-         "name":"ExternalWidgetName",
-         "config_iframe_url":null,
-         "iframe_url":"/path/to/widget/page",
-         "version":"1.3.8"
-      }
-   ]
-}
-```
-
-If no configuration URL is provided, the standard [IFrame Widget](#iframe) configuration options apply.
+External services can [automatically share](@/development/external-integrations/index.md) web interface URLs for Cockpit to turn into IFrame widgets, along with other features.
 
 ##### Image Viewer