If you can help or wish to become one of the maintainers - just start helping. You can find more RVM related projects at RVM Github organization.
∞Using MacPorts with RVM
RVM Uses MacPorts by default (if installed) read more about autolibs.
For old instructions before autolibs visit MacPorts before Autolibs
In case of problems with MacPorts you can try Homebrew:
rvm autolibs homebrew