Sinatra is a web application library that was designed to make building small or modular web apps easy. It was built in Ruby by Blake Mizerany in 2007 and is used by everyone from junior web devs like myself to big companies like Apple and the BBC.
Sinatra was designed and developed by Blake Mizerany (bmizerany) in California. Sinatra would not have been possible without strong company backing. In the past, financial and emotional support have been provided mainly by Heroku, GitHub and Engine Yard, and is now taken care of by Travis CI.
Sinatra is a DSL for quickly creating web applications in Ruby with minimal effort:
require 'sinatra' get '/frank-says' do 'Put this in your pipe & smoke it!' end