Unco is a wrapper program which records the changes made to files by programs so they can be undone. It is possible to undo the changes made by any command (e.g. git, make install, rm, etc.).
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.