Run this command to add a Person model class and simple pages for CRUDing Person records:
rails generate scaffold Person first_name last_name date_of_birth:date
Migrate the database:
rails db:migrate:reset
Run the server:
rails s
Open http://localhost:3000/people to confirm that the pages are working. For example, you might create a new person record.
Press Ctrl-C to halt the server.