Tech Specification

Runtime

Package	Purpose
`@react-navigation/native`	Navigation container
`@react-navigation/bottom-tabs`	Bottom tab bar
`@react-navigation/stack`	Stack navigation
`@tanstack/react-query`	Server state
`@react-native-async-storage/async-storage`	Local persistence
`react-hook-form`	Form state
`zod`	Validation
`styled-components`	Component styling
`react-native-config`	Env variables
`react-native-bootsplash`	Splash screen
`react-native-gesture-handler`	Gesture support
`react-native-safe-area-context`	Safe area insets
`react-native-screens`	Native screen optimisation
`react-native-svg`	SVG support
`react-native-toast-message`	Toast notifications
`react-native-modal`	Modal dialogs

Managed by react-native-config. Create a .env file:

API_URL=http://localhost:3001

Variables are accessible in JavaScript as Config.API_URL and in native build configs via the plugin.