TMSU is an application that allows you to organise your files by associating them with tags. It provides a tool for managing these tags and a virtual filesystem to allow tag-based access to your files.
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.