(I guarantee nothing. No warranty I am not responsible blah blah blah. Seems to work great for me so far. Thanks to Stanley Stuart who I forked this form & updated for p484 who originally forked it from Tyler Bird for p392)
This installs a patched ruby 1.9.3-p484 with the railsexpress patchsets: https://github.com/skaes/rvm-patchsets