I recently wrote about duplicating iCloud Drive and iCloud Photos to a network-attached storage (NAS) system. This struck a nerve for folks who want to keep full-resolution backups of their Photos Library when they don’t have enough local storage. (That column was focused on not needing to keep your Mac powered up to handle these iCloud offline backups when the Mac was otherwise not in use.) Readers wrote in or replied via social media with strategies and workarounds, as well as suggesting ...