Host calendar to be shared via link

Dear developers, dear users,

My flatmate and I use home assistant from few months now and the experience has been amazing so far.

For common reminders such as trash collection, holidays, and so on, we would like to use a shared calendar.

Since we can use HA with remote access, I think it would be cool to use the HA calendar, and specifically edit events from built-in Calendar apps, both for Google and Apple. The overall experience should look like a “subscription calendar” via .ical link.

I had a look on forums, but this specific feature is missing.
Overall, why using a Google/iCloud calendar when I can host one by myself?

Regards