Available packages subdirectories simply hold some fakefiles.
These fakefiles are virtual regular files, or namely, the only type
of regular files found in PackageFS. They contain no data at all,
but provide access to specific information. In the current prototype
implementation these entries store an
fakefile.
As the user reads such a file, he gets some information about the
package. Of course they depend on the ability of the low-level package
manager to retrieve metadata. Figure 5.3 shows
the gcc-3.3
fakefile in our testing
enviroment.
