This repository is the foundation of the software used on MIL's projects. It contains all packages that are generic and can be applied to any project. It's wiki is the main repository of knowledge as it contains pages that apply to all projects are MIL in general.
Information about getting involved in MIL is available on the mil_common wiki. The home page will introduce you to the various projects that are under development in the lab and provide a link to the getting started guide.