Rack::Cascade and Modular Sinatra Applications

# app.rb
require 'sinatra/base'

class Banana < Sinatra::Base
  get('/banana') { '🍌' }
end

class Broccoli < Sinatra::Base
  get('/broccoli') { '🥦' }
end

class Bacon < Sinatra::base
  get('/bacon') { '🥓' }
end

# config.ru
require 'rubygems'
require 'bundler'
Bundler.setup(:default)

require './app'
run Rack::Cascade.new [Banana, Broccoli, Bacon]

# Gemfile
source 'https://rubygems.org'

gem 'sinatra'