STUFFS is a simple tag-based file-system experimenting with new ways to view, organize, and search for your files. Traditional hierarchal paths are replaced by sets of tags applied to your files, allowing for out-of-order and partial sets to "filter" your files and show you the ones you want.
Files and tags are stored in an SQLite3 database mapped to a fuse file-system. "Directories" are dynamically generated and contain every file existing in the intersection of the tags in the path.
Otherwise, the system is pretty-much backwards compatible and can be used like a traditional, hierarchal system.