How can sass be added to PATH in a nodejs cartridge on OpenShift?

How can sass be added to PATH in a nodejs cartridge on OpenShift?

gears start

starts my Sails.js app but Grunt-contrib-sass fails to find sass installed using

gem install sass

even when ~/.gem/bin is added to the ssh PATH.

if you use nodejs try:

   gem install sass

   ln -s /var/lib/openshift/53fe54c24382ec79e200017e/.gem/bin/sass /var/lib/openshift/53fe54c24382ec79e200017e/app-root/runtime/repo/node_modules/.bin/

or find one path in:

echo $PATH