First, you will need to start Metro, the JavaScript bundler that ships with React Native.

To start Metro, run the following command from the root of your React Native project:

# using npm
npm start

# OR using Yarn
yarn start

Let Metro Bundler run in its own terminal. Open a new terminal from the root of your React Native project. Run the following command to start your Android or iOS app:

# using npm
npm run android

# OR using Yarn
yarn android

# using npm
npm run ios

# OR using Yarn
yarn ios

1. If you want to enable/disable storybook make STORYBOOK_ENABLED = true/STORYBOOK_ENABLED = false or vice-versa in .env file
2. Then, clean build folder and rebuild the app