Calendar Service in MacOS Server Is a Surprisingly Reliable Alternative to Commercial Applications
MacOS Server, priced at $ 20, is one of those overlooked programs that most of us don’t need at all, but has a lot of neat little features. At Macworld, they dig into a calendar feature that’s easy to set up and use, and then keep your data as private as possible.
Generally speaking, most of us use Google, iCloud, or Exchange just fine for our calendar needs, but if you prefer to use what you control, macOS Server will do the job just fine. It works in much the same way as iCloud, with push notifications, cross-device sync, and group scheduling. This is definitely overkill for most of us, but if you want complete control, this is one of the easiest options to use. Visit Macworld for the complete guide.
How to set up a calendar service in macOS Sierra Server | Macworld