Add-on Calendar - with iCal import/sync

Hi there,

I am looking for an addon to implement a calendar into the forum. There are many different addons in the ressources but I didn't find a single one which works with an iCal calendar. I want to connect a shared iCal calendar to the addon, so the events are always synced.
The closest solution I found is this one here, but this is not really a fully integrated calendar.

Did I miss something in the ressources? Or is there no way to solve this?

Thank you for your help!