Render a card from another homeassistant server within iframe card

I already use remote homeassistant heavily, but there are some entities that do not work, particularly the calendar integrations.

I keep all my cloud connected integrations in a hassos server in my private server cluster, so I would like to know if there’s a way to render just one card on the remote server and embedd it on my home server using the iframe card.

My initial attempts are cludgey by just making a 1 card dashboard with the calendar. But I’m hoping there’s a way to request just one card so it can be rendered better in the home hassos