mach allows you to set up clean build roots from scratch for any distribution or distribution variation supported. In this clean build root you can then easily generate pristine packages. mach is written in python. Currently, mach supports rpm-based distributions that can work with apt for rpm - hopefully this will be extended to other types of package manager as well.
mach makes a chroot. Using apt-get and a suid binary, it manages to install clean chroot environments based on the original packages for that distribution.
mach is a property of mach respective authors, vendors and developers. You can download mach for your hardware. If you want to use mach for other purpose, Please contact the authors, vendors and developers of mach.