We use GIT SCM to manage our sources. If you want to contribute packaging, developing of lpms and other component, you should learn to use GIT SCM.
We prefer Gitorious because of it is free(free as in freedom).
Gitorious Project Page:
lpms(Our package building and distribution system):
http://gitorious.org/hadron/lpms
Main Package Repository:
http://gitorious.org/hadron/main-repo
Ohloh Pages:
https://www.ohloh.net/p/hadronproject
Playground Repositories:
https://gitorious.org/hadron-playground