Preface Coffee is a spin-off business of the modern technical skill training center, Preface, which offers courses in data science, A.I., and other popular programming languages for professional development.

To enhance their coffee shop business, they needed to create a coffee order app with a point-earning system. Considering their nature as a programming training center, I designed a "Script Mode" feature that allows customers to place an order by typing in code. This unique feature is aimed at attracting regular coffee lovers who are curious about coding and want to experience the excitement of hacking while also leading them to learn more by attempting the courses offered at Preface.