WidgetStar just got a pretty big update for community widgets!

• We have improved the way you interact with WidgetStar when making a widget. You can now access way more information (like instance id or where the widget is hosted). Check embedding tab of your widget to see more information. Old widgets continue to work.
• You can now authorize owner of the site using WidgetStar's new API! This is how status widget supports posting directly from your site. Now its available to community widgets too.
• You can now create custom subpages for more complicated dashboards!

There's now Widgetmaking Guide: https://widget.st/docs/widgetmaking/community-widgets
It describes how to create a widget and all of these topics in detail. With this update, it is now possible to create much more complicated widgets.