title: Purescript plugin system
body: <p>Does purescript have something like Haskell's System.Plugins?
  I need to create some 'generic interface' (sorry for this, I've been programming in object oriented languages for almost 15 years) that other developers will be able to use just by putting a module file in a plugins directory.</p>
  
  <p>I wonder if it is possible since as far as I know Purescript does not have any metadata carried with types at runtime.</p>