Right now, Proton Calendar only supports importing .ics files or subscribing to external calendars. Other providers (e.g. Google Calendar, Outlook) allow a simple “Add to Calendar” deep link that lets users add an event to their calendar with one click.

It would be very useful if Proton Calendar supported a similar feature. For example, when an organisation sends me an event invitation, they could share a Proton-specific link that opens Proton Calendar directly and pre-fills the event details.

This would make it much easier to add events without having to manually download and import .ics files.