Building a Mobile App with Termux #03 — Expense Model & Categories

Before building screens, the app needs to know what an expense actually is. In this episode, we define the expense data model, the fixed list of categories, and a small formatting utility. We also build the first ExpenseCard component and preview it on the home screen with mock data. This is the foundation that the rest of the app will be built on. 📌 Next episode: We'll add full support for English and Portuguese — internationalization from the ground up. Subscribe to follow the journey! Music by Kira Vale from Pixabay #Termux #ReactNative #Expo #AndroidDevelopment #MobileAppDevelopment