I think so too :D

It's definitely something I am having in the backlog, but I cannot promise if and when it will be implemented.

I wanted to let you know that I find your approach to future features refreshing, in contrast to the typical over-promising you typically see.

Yes, and also honest.

If you are okay with gpl software/backend, you could reuse some code of one of my side project: https://apps.kde.org/kalendar/ (support google api, caldav, etesync and Outlook calendars)