Dear FOSS-community, can we figure out the federated approach to events calendar?

I see that there is a #Mobilizon thingy, which looks promising.

So I wonder if there are already folks from #FOSDEM, #FrOSCon, #PyCon, #DebCon #SUSECon, #FedoraNest .. etc looking into it, and what needs to be done so that we all can find each other?