Twitter has released a very helpful toolkit recently called Bootstrap:
"Bootstrap is a toolkit from Twitter designed to kickstart development of webapps and sites. It includes base CSS and HTML for typography, forms, buttons, tables, grids, navigation, and more."
I like using Sinatra for getting Ruby apps up and running quickly and thought it would be nice if I could marry Sinatra and Bootstrap together. Sinatra allows for a number of template languages, but I tend to use Haml. I adapted one of the Bootstrap quick-start templates to Haml and thought I'd share it. If I get time I'll do the others as well.
One thing to note: each quick-start template references the bootstrap.css, but also includes a fair bit of additional styling in between <style></style> tags. I moved this all to an external stylesheet, launch.css.
rvm use 1.9.2
rvm gemset create bootstrap-haml
rvm gemset use bootstrap-haml
gem install sinatra
gem install haml
ruby -rubygems app.rb