rack_server_suggestion

# File railties/lib/rails/commands/server/server_command.rb, line 283
        def rack_server_suggestion(server)
          if server.in?(RACK_SERVERS)
            <<~MSG
              Could not load server "#{server}". Maybe you need to the add it to the Gemfile?

                gem "#{server}"

              Run `rails server --help` for more options.
            MSG
          else
            suggestion = Rails::Command::Spellchecker.suggest(server, from: RACK_SERVERS)
            suggestion_msg = "Maybe you meant #{suggestion.inspect}?" if suggestion

            <<~MSG
              Could not find server "#{server}". #{suggestion_msg}
              Run `rails server --help` for more options.
            MSG
          end
        end

        def print_boot_information(server, url)
          say <<~MSG
            => Booting #{ActiveSupport::Inflector.demodulize(server)}
            => Rails #{Rails.version} application starting in #{Rails.env} #{url}
            => Run `rails server --help` for more startup options
          MSG
        end
    end
  end
end