We had a previous answer to this question that is out of date, so I deleted it.
Currently our development environment is configured so you can dynamically place widgets on the page with query parameters in the URL. See here for more details:
https://docs.q2developer.com/docs/guides/frontend_development/widgets.html
For instance, if your extension was named and installed as MyWidget, and your stack name was mystack, the URL for placing the widget on the home page top would be:
https://stack.q2developer.com/sdk/mystack/ardent/uux.aspx?widget_location=dashboard.top&widget_name=MyWidget.Main
You can name the extension whatever you want, and when you request deployment, specify the widget location you want it in Online Banking, and we will add it permanently to the theme.