Momonga Project provides most of source packages as nosrc.rpm with a few exceptions. We create a directory to store source files of each packages and manage them with Subversion. OmoiKondara is the tool to take out files from this Subversion repository to build packages.
Using OmoiKondara enables creation of the latest packages with your own spec and patch files and then the resulting package will be put on the FTP server at Momonga Project. The packages in the Subversion repository are built on a regular basis and the build packages are placed on the FTP server.