saucy/app/controllers/application_controller.rb

class ApplicationController < ActionController::Base
  include Clearance::Controller

  before_action :set_paper_trail_whodunnit
  before_action :initial_setup_redirect

  def initial_setup_redirect
    redirect_to '/initial_setup' if requires_initial_setup?
  end

  def requires_initial_setup?
    User.count.zero? && Member.unscoped.count.zero?
  end
end