The Integrations tab in Settings lets you connect a Home Assistant instance so its dashboards can be used as content in your playlists.
Only owners and admins can connect Home Assistant.
You will need two things from your Home Assistant instance before you start: the base URL (usually a LAN address such as https://hass.local:8123 ) and a Long-Lived Access Token. To generate a token, go to your HA user profile and navigate to Security then Long-Lived Access Tokens.
Once connected, Home Assistant dashboards are available as a content type when adding items to a playlist. See Adding Content to a Playlist and Content Types for details.