I'd *really* like to see the ability to share a link for one of my calendars that allows a user to schedule/request a block on my calendar (which I can then accept or not) based on entire availability or pre-defined appointment slots, similar to [Koalendar](https://koalendar.com/) or [Calendly](https://calendly.com/). Google/Microsoft calendar users shouldn't be the only ones to get integrations like these; Proton Calendar is an excellent service and should be included in such lists! Is something like this already on the roadmap or being discussed?