Create a .env file in the root folder of your project. Add the following values to the .env file:
MONGODB_URI=your_mongodb_uri_here
GOOGLE_GENERATIVE_AI_KEY=your_google_generative_ai_key_here
GOOGLE_ID=your_google_id_here
GOOGLE_SECRET=your_google_secret_here
NEXTAUTH_SECRET=your_nextauth_secret_here