As I keep forgetting how to do this: gem install –user-install gem_name Taken from http://www.binarytides.com/quick-tip-installing-ruby-gems-in-the-users-home-directory/
Tristan is an engineer with first-hand knowledge of marketing & business strategy, experience of delivery, and deep technical capabilities. More importantly, he knows how a business makes money and revels in translating complexity into something workable. He is interested in high-growth, high-margin opportunities where there is tangible IP or skills to be developed.