title: Ruby on Rails: where to put the 'require' files?
body: <p>I'm trying to use this <code>gem barometer</code> and in the <a href="https://github.com/attack/barometer" rel="nofollow">document</a> it says that it can be used right out of the box with using <code>require 'barometer'</code></p>
  
  <p>I've always used gems and put them in the <code>gemfile</code>, but I think this is different...</p>
  
  <p>Do I just download this entire repo, and copy all the files in the <code>lib</code> folder into my <code>vendor</code> folder? or maybe <code>public</code> folder? </p>
  
  <p>Where would you typically put these files? And where would you include the <code>require</code>? Should this be in the <strong>application controller</strong>? Or maybe in the helper? Sorry for this really noob question.</p>
  
  <p>I know in my local environment, I can just type in <code>gem install barometer</code> in my console, and not have to put in a <code>require</code>, but I don't think this will work in heroku, or production environment.</p>