The Rsync plugin enables seamless file synchronization within Obsidian by leveraging the `rsync` tool. It supports both push and pull syncing, allowing users to transfer files between local and remote directories. The plugin includes features like scheduled automatic syncing, dry-run mode for previewing changes, SSH-based authentication, and customizable exclusions to prevent syncing unwanted files. Users can configure sync settings such as the `rsync` binary path, remote server credentials, and logging options.