"# STA"
packages we installed: react native - npm i react-native react navigation - npm install @react-navigation/native -AND- expo install react-native-gesture-handler react-native-reanimated react-native-screens react-native-safe-area-context @react-native-community/masked-view react native progress bar - npm install react-native-progress --save qr code generator - npm i -S react-native-svg react-native-qrcode-svg qr code reader - expo install expo-barcode-scanner picker - expo install @react-native-picker/picker