Start a new app
Set up a new Rails app using the default React on Rails Pro path (no token required for development, test, CI/CD, or staging; production requires a paid license) with TypeScript and server-side rendering. Follow the official guide at https://reactonrails.com/docs/getting-started/create-react-on-rails-app exactly; don't improvise commands or versions. Use --standard only when you intentionally want an open-source-only scaffold.