Help with dashboard and Nest Hub casting:

Hello guys. I have started making dashboards for HA that is cast to my Nest Hub Max but have some small problems I hope you can help with:

  1. When I cast a dashboard with web card (iframe) with e.g. mealie, the card is not shown on my Hub. Maybe it has something to do with Mealie on HA is http? How do I get it over? Can iframe display an external website, so will I be able to install Mealie as a docker on Unraid and make it as https?

  2. I have set up Music Assistant, Mealie on HA and when I make the two integrations in Dashboard it would be nice if you only see the integration without side menus etc. Is it possible to turn it off so that only Music Assistant/Mealie is shown? When I play music on my Nest Hub Max it always shuts down the Dashboard. Is there a way for it to resume the Dashboard itself after music is finished?

  3. Can I use the Nest Hub sense function so that it activates Dashboard when I approach?

A little extra info. I have set up SWAG reverse proxy on an Unraid server so I can access my HA from outside and have connected it to Google Home. My HA is a VM on ESXi. There are so many options in Home Assistant, but it is somewhat time consuming.