RevoBackup is an rsync-based backup script, similar to Dirvish and Rsnapshot but written from scratch to allow a clean codebase and maintainable code. It aims for good reporting and logging capabilities.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.