# Frontend Configuration NEXT_PUBLIC_API_URL=http://localhost:5000 NEXT_PUBLIC_STELLAR_NETWORK=futurenet NEXT_PUBLIC_CONTRACT_ADDRESS=your_contract_address_here # Backend Configuration FLASK_ENV=development FLASK_DEBUG=true STELLAR_NETWORK=futurenet CONTRACT_ADDRESS=your_contract_address_here # Firebase Configuration FIREBASE_PROJECT_ID=your_project_id FIREBASE_PRIVATE_KEY_ID=your_private_key_id FIREBASE_PRIVATE_KEY="-----BEGIN PRIVATE KEY-----\nyour_private_key_here\n-----END PRIVATE KEY-----\n" FIREBASE_CLIENT_EMAIL=firebase-adminsdk-xxxxx@your-project.iam.gserviceaccount.com FIREBASE_CLIENT_ID=your_client_id FIREBASE_AUTH_URI=https://accounts.google.com/o/oauth2/auth FIREBASE_TOKEN_URI=https://oauth2.googleapis.com/token