To install Orage without XFCE, or with XFCE4.16 or later, see here.
What I am about to describe is a method that has worked for me on both PCLinuxOS (XFCE4 Community Edition) and MX-Linux (which uses XFCE4 by default). It ought to work on any version of Linux using the XFCE4 desktop (provided the necessary python dependencies are available — always the case as far as I know). Bear in mind, though, that there are no guarantees that it will work for you, or the sky will not fall on your head, or your computer won’t explode. You do this at your own risk.
You need to ensure that the Orage calendar is applet is on your XFCE panel. If you are using a desktop other than XFCE4, you can set Orage to appear as an icon in your system tray instead (Edit>Preferences>Extra Settings). Continue reading →