Exploring Apple's File Systems: A Look at APFS and Hyperspace

Interest in file systems began with the author's experience using Macintosh. They were excited about potential file systems like ZFS and Be File System but ultimately saw the introduction of the Apple File System (APFS) in 2017. APFS features, such as point-in-time snapshots and copy-on-write clones, allow for efficient file management and backup. The author created a Mac app named Hyperspace to reclaim disk space by converting duplicate files into clones, which share data without deleting originals. Hyperspace is available for free download, but users must pay to actually reclaim disk space. The app uses SwiftUI and Swift 6, and while it carries some risk, it aims to be beneficial for many Mac users.