OpenSUSE Build Service
A build service for from OpenSUSE people. Makes the building of compiling distribution easier. Also has some support for Fedora, Ubuntu, Debian.
The openSUSE Build Service is an open and complete distribution development platform that provides infrastructure for a development of the future openSUSE distributions.
The service provides software developers with a tool to create and release open source software for openSUSE and other Linux distributions easily on different hardware architectures and for a broad user audience. Users can easily find the latest open source packages they are looking for and customize them. It provides a bridge between developers and users with feedback and rating functionality. For developers it is an efficient place to build up groups and work together through its project model.
Read more at http://http://en.opensuse.org/Build_Service
Access the Build Service at https://build.opensuse.org/