Content Caching is a unique Mac feature that can be extremely useful if you have several Apple devices in your home. It can be used to save your internet data, speed up downloads, and even iCloud data access, by caching things like iOS, macOS, or iPadOS software updates on the Mac, which then get distributed from the server Mac to eligible devices on the network – rather than having to download them again from Apple. This feature used to be restricted to macOS server, but Apple pushed it out to consumers with the macOS High Sierra update a few years ago.

Ever…