Dot Env Format:
REACT_APP_FIREBASE_REGION= REACT_APP_FIREBASE_PROJECT_ID= REACT_APP_FIREBASE_API_KEY= REACT_APP_FIREBASE_AUTH_DOMAIN= REACT_APP_FIREBASE_DATABASE_URL= REACT_APP_FIREBASE_PROJECT_ID= REACT_APP_FIREBASE_STORAGE_BUCKET= REACT_APP_FIREBASE_MESSAGING_SENDER_ID= REACT_APP_FIREBASE_APP_ID=
Run Emulator: npm run firebase:emulate
Deploy Hosting and Functions: npm run firebase:deploy:hosting:dev npm run firebase:deploy:functions:dev