Rapture is an APT mirror and concentrator. The idea is to deploy it on a network where you have multiple Debian based distributions installed so that you really only need to pull a package once from the internet, just like as if you had setup your own APT mirror. However, it's also designed to take multiple APT sources and show them all via your repository. Allowing you to keep your sources.list very simple while still getting all the packages you need.
Use Patent Claims
Include Install Instructions