Get a skeleton sinatra app up and running before you finish wishing you had an idea

gem install sinatra_bootstrap

take_the_stage sinatra

Wow, that was easy. take_the_stage sinatra will generate a Gemfile specifying only gem 'sinatra', '~> 1.3' as well as a main.rb file to hold your application.

take_the_stage sinatra --rackup

The rackup variant will also generate a config.ru file suitable for deploying your application on a Rack-based server.

The optional pow variant may be added to generate a tmp/always_restart.txt to configure pow.cx to restart the server after each request.

take_the_stage heroku

When passed heroku sinatra bootstrap will generate a more complete Gemfile containing thin, heroku, and foreman. It also outputs a simple config.ru and Procfile