Pow - http://pow.cx/ 

Powder Gem - https://github.com/rodreegez/powder/ 

Prax - http://ysbaddaden.github.io/prax/ 

Install Pow

# bash
curl get.pow.cx | sh

Powder is a great tool for making Pow easier to use.

# bash
gem install powder

Within your application root directory, you can now link or unlink your application.

# bash
powder link
powder unlink