Minimal Rails app

config.ru

require 'bundler/setup'
require "action_controller/railtie"

Bundler.require(:default, Rails.env)

module Blurgh
  class Application < Rails::Application
    config.secret_key_base = "xyz"
  end
end

Blurgh::Application.initialize!

class HelloController < ActionController::Base
  def index
    render text: "Hello World"
  end
end

Blurgh::Application.routes.draw do
  root to: "hello#index"
end

run Blurgh::Application