title: Can templates coexist and still one of them be used in Rails?
body: <p>I am semi-forking Redmine for my company and rarely pulling improvements from upstream. I prefer to use SLIM over ERB for views. My idea is that I want to keep erb files intact for the sake of easier diff-ing when I pull changes from upstream, still I want to only use SLIM versions of the templates.
  So where I have</p>
  
  <pre><code>index.html.erb
  </code></pre>
  
  <p>and</p>
  
  <pre><code>index.html.slim
  </code></pre>
  
  <p>I want Rails to only search for index.html.slim and take no notice about the existence of the erb variant. Is it possible to make the two variants coexist side-by-side in the same folder and only use SLIM here?</p>