How GoodJob's mountable Rails Engine delivers Javascript importmaps and frontend assets

GoodJob is a multithreaded, Postgres-based ActiveJob backend for Ruby on Rails.GoodJob includes a full-featured (though optional) web dashboard to monitor and administer background jobs. The web dashboard is included in the good_job gem as a mountable Rails Engine.As the maintainer of GoodJob, I want to make gem development easier for myself by innovating as little as possible. That’s why GoodJob builds on top of Active Record and Concurrent::Ruby.