1. Install EAS CLI: `npm install -g eas-cli`
2. Login to EAS: `eas login`
3. Initialize EAS: `npx eas-cli@latest init`
4. Build for iOS: `npx eas-cli@latest build -p ios --profile production`
5. Build for Android: `npx eas-cli@latest build -p android --profile production`
6. Submit to App Store: `npx eas-cli@latest build -p ios --profile production --submit`
7. Submit to Play Store: `npx eas-cli@latest build -p android --profile production --submit`
8. Deploy web app: `npx expo export -p web && npx eas-cli@latest deploy --prod`