You have decided to add functionality for your employees to log in and interact with your app.
Add users using devise.
Users can create kopis.
Use an admin attrbute in the table to create "admin" users.
Complete the roasts functionality from the previous further.
Admins can edit, add and and change roasts.
Regular users can only add coffees.
Open the app to your customers who are ordering the coffee. (In the previous part further) Logged in users can order kopis.