Hisyo is a generator that for your Sinatra project to play.

$ gem install hisyo
$ rbenv rehash; rehash; # if necessary
$ hisyo -r ~/myapp
Complete.
  $ cd ~/myapp
  $ rackup (or `rspec spec/`, `vim app/helpers.rb`, etc)
$ cd ~/myapp
$ tree -Fa
.
├── .gitignore
├── Gemfile
├── app/

Generated project(as below) is a purely Sinatra application. That means you can gem uninstall hisyo after generation.