In this project, I used Leanback library to create the UI for Fire TV OS. The code is written on Konlin, followed by Clean Code principles and MVVM architecture. I worked in a team, my responsibilities were to create custom UI components, receive data from the server side, adding animations. The code was covered with unit tests and UI tests. I also implemented a third-party library for payments and customized the About screen, considering the restrictions imposed by the TV OS.