IIRC that can even be done in Linux, but the main source of my lamentation in the first place is that I can't just close the app and forget about it, because of

IIRC that can even be done in Linux, but the main source of my lamentation in the first place is that I can't just close the app and forget about it, because of an occasional message in a couple months. (Though, now that I think of it, Skype API on the desktop was there before version 8―and since they've broken the app quite thoroughly in version 8, I'd be surprised if the API survived.)