For rails console pry is a much better REPL than IRB, so why not use it in production?

readme.md

Only a couple of changes are necessary. Not sure I love the config/application.rb change...

application.rb

# Your typical config/application.rb
module MyApplication
  class Application < Rails::Application
    # ... probably lots of other stuff
    console do
      require 'pry'
      config.console = Pry
    end
    # ...
  end
end

Gemfile

# This goes at global scope (remove it from your other groups)
gem 'pry-rails', require: false
gem 'pry-byebug', require: false

pry.rb

# config/initializers/pry.rb
unless Rails.env.production?
  require 'pry' # support binding.pry breakpoints in development and test
end