1. Create .env.local file in project root
2. Add these environment variables:
NEXT_PUBLIC_SANITY_PROJECT_ID=your-project-id NEXT_PUBLIC_SANITY_DATASET=production SANITY_API_VERSION=2023-10-01 SANITY_WRITE_TOKEN=your-write-token-here EMAIL_USER=ardahmetxx@gmail.com APP_PASSWORD=your-gmail-app-password
3. Restart the development server: npm run dev