How do you implement vector icons in a React Native app?

To implement vector icons in React Native, use the React Native Vector Icons library directly instead of unreliable NPM packages. First, install the library with 'npm install react-native-vector-icons'. Then import the specific icon set you need, such as 'import FontAwesomeIcon from react-native-vector-icons/FontAwesome'. Use the component in your JSX with the name attribute for the specific icon and customize with size and color properties. This approach works seamlessly with React Native Web and provides access to popular icon sets like Font Awesome, Ant Design, and many others.