Rails.env.development? || Rails.env.test? が Rails 7.1 で Rails.env.local? でまとめられるようになったの便利 » Rails.env.local? in Rails 7.1 | Saeloun Blog https://t.co/Mi2nnuuNZc

— toshimaru (@toshimaru_e) June 4, 2024

if Rails.env.local?
  # create some test data for development or test environment
end

ref. Rails.env.local? in Rails 7.1 | Saeloun Blog

便利。