I would like to put in a request to add an integration for google calendar for Nabu-Casa users.
I know there is a way to do it manually now but that is rather user unfriendly with a google dev account and all that crazy stuff. Google Calendar integration in your HA instance adds a lot of functionality to automations and is very handy. The complexity of the integration installation prevents MANY potential users from even trying it.
This integration would go along the line of the cloud_tts feature and the remote webhook feature that Home Assistant already offers. IE there is a way you can do it yourself, but support us and we can make it easier.