RsyncUI: A GUI for rsync on macOS

RsyncUI is a SwiftUI-based macOS application providing a graphical user interface for the command-line tool rsync. It simplifies rsync usage by letting users organize tasks and set parameters easily. Compatible with macOS Sonoma and later, it can be installed via Homebrew or direct download. Importantly, RsyncUI is a GUI; the actual synchronization is handled by rsync. Users can abort tasks, but should allow cleanup to complete before starting new ones.