Project-Builder is a tool that helps you build packages of your application (managed with a tar file or a configuration management system such as CVS, Subversion, Mercurial, or GIT). It is able to generate a build package skeleton for your project. With simple configuration files, it can generate for up to 20 different tuples of distributions (name, version, architecture), including Fedora, Mandriva, OpenSuSE, Debian, Ubuntu, Gentoo, and Slackware. It is a good tool for doing continuous packaging.