Buildout is used by many Python based projects and communities. Also it is used by many organization for developing and deploying applications.
Buildout use Python’s distutils-sig for all discussions. You can send your queries to the distutils-sig mailing list.
The source code of Buildout is maintained in the Zope subversion repository. To check out the trunk:
svn co svn://svn.zope.org/repos/main/zc.buildout/trunk zc.buildout
You can contact Jim Fulton or ask in the distutils-sig for contributing to this project.
There is an IRC channel #buildout at freenode.net .