**tumbler.coffee** is just a very simple server for CoffeeScript/Less development
+To run it, you need to have:
+* CoffeeScript installed in such a way, coffee is in your path. (typically via npm)
+* If you want to use less as well, you need to have installed in such a way it is in your path as well. (typically via npm)
+Now let's say you have a bunch of static files, .less and .coffee.
+Let's say all in //~/my_project/static//.
+Download **[[https://bitbucket.org/poulejapon/tumbler/downloads/tumbler.coffee|tumbler.coffee]]** in this directory and run tumbler.coffee from this very same directory.
+Your static files are now available on [[http://localhost:9000/|http://localhost:9000/]].
+For instance, you could check for [[http://localhost:9000/tumbler.js|http://localhost:9000/tumbler.js]]