We Need to Talk About the State of Calendar Software on Desktop
Smartphones are fine. There are no problems today with finding good calendar software for any smartphone out there. But when it comes to desktops (or laptops), there are exactly two cases in which using calendars in 2024 isn't a complete disaster:
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Rainlendar is good and works on Windows and Linux. It's not open source though, and some features such as Caldav support require a pro license for €10
I used to use this maybe a decade ago. I'm glad to see it's still around!
I've unfortunately switched to Google Calendar when my workplace started using it informally, and it's just been the easiest to stick with.