Sinatra-template is a project mainly written in JAVASCRIPT and RUBY, it's free.
Based on Sinatra and Haml.
1: Install RubyGems
2: Install Bundler (>= 1.0)
$ sudo gem install bundler
3: Bundle
$ cd MY/APP
$ bundle install --path vendor/bundle
4: Install CoffeeScript
$ bundle update
Webrick:
$ ruby main.rb
Rackup:
$ rackup
Thin:
$ thin start