10.1 Sample .env Variables

Example configuration for local development:

# Firebase (Frontend)
NEXT_PUBLIC_FIREBASE_API_KEY=your_api_key
NEXT_PUBLIC_FIREBASE_AUTH_DOMAIN=your_auth_domain
NEXT_PUBLIC_FIREBASE_PROJECT_ID=your_project_id
NEXT_PUBLIC_FIREBASE_STORAGE_BUCKET=your_storage_bucket
NEXT_PUBLIC_FIREBASE_MESSAGING_SENDER_ID=your_sender_id
NEXT_PUBLIC_FIREBASE_APP_ID=your_app_id

# Network / Contract
NEXT_PUBLIC_NETWORK=testnet
NEXT_PUBLIC_CONTRACT_ID=your_contract_id
NEXT_PUBLIC_HORIZON_URL=https://horizon-testnet.stellar.org
NEXT_PUBLIC_RPC_URL=https://rpc-futurenet.stellar.org