(copied from my rails history)
$ cd Desktop $ rails new foxtrotters -d postgresql -T $ cd foxtrotters $ rails db:create $ rails s $ git checkout -b react-in-rails $ bundle add webpacker $ bundle add react-rails $ rails webpacker:install $ rails webpacker:install:react $ yarn add @babel/preset-react $ yarn add @rails/activestorage $ yarn add @rails/ujs $ rails g react:install $ rails g react:component App $ code . $ rails g controller Home $ rm app/helpers/home_helper.rb $ bundle add bootstrap $ yarn add reactstrap $ yarn add react-router-dom $ rails s