basic-rails/app/controllers/main_controller.rb

# MainController for basic routes
class MainController < ApplicationController
  def home
    # flash.now[:notice] = 'this is a notice flash'
    logger.info 'efficient logging for dark theme'
    @value = 6
  end

  def about
    # flash.now[:alert] = 'this is an alert flash'
    logger.debug 'some debugging info'

    logger.info 'relevant information'
    # logger.info "multiline\nline2\nline3"

    logger.warn 'a warning'
    # logger.error "an error"

    # raise "this is an error"
    # sleep 3
  end
end