I've successfully set up my heroku app with the [grunt buildpack](https://github.com/mbuchetics/heroku-buildpack-nodejs-grunt). When I push my Node.js app to heroku it will run the appropriate grunt task.

What I'd like is to use the 'grunt-contrib-compass' package to compile my .scss files. But that requires the compass executable and I don't know how to get that.

I've checked the heroku documentation and have seen an [outdated doc that describes setting up compass with ruby](https://devcenter.heroku.com/articles/using-sass)... but I haven't seen any recent documentation for setting it up with Node.js.

Any ideas?