SystemImager is software that makes the installation of Linux to masses of similar machines relatively easy. It makes software distribution, configuration, and operating system updates easy, and can also be used for content distribution.
It's still a great piece of software. Flexible, robust, well thought. I've deployed and updated A LOT of HPC nodes using systemimager. Recently it seems like development stopped. It is a pity. I encourage authors to find their way to make profits from this project like for example bacula authors did while still giving the community open source version.