LIVEKIT_API_KEY=<your API Key>
LIVEKIT_API_SECRET=<your API Secret>
LIVEKIT_URL=<your LiveKit server URL>
GOOGLE_API_KEY=<your Google/Gemini API key>
GEMINI_REALTIME_MODEL=gemini-3.1-flash-live-preview
GEMINI_IMAGE_MODEL=gemini-3.1-flash-image
GEMINI_LYRIA_MODEL=models/lyria-realtime-exp