Add Gemini Live bot file

examples/simple-chatbot/server/README.md

@@ -1,11 +1,11 @@
 # Simple Chatbot Server
 
-A FastAPI server that manages bot instances and provides endpoints for both Daily Prebuilt and RTVI client connections.
+A FastAPI server that manages bot instances and provides endpoints for both Daily Prebuilt and Pipecat client connections.
 
 ## Endpoints
 
 - `GET /` - Direct browser access, redirects to a Daily Prebuilt room
-- `POST /connect` - RTVI client connection endpoint
+- `POST /connect` - Pipecat client connection endpoint
 - `GET /status/{pid}` - Get status of a specific bot process
 
 ## Environment Variables
@@ -13,14 +13,37 @@ A FastAPI server that manages bot instances and provides endpoints for both Dail
 Copy `env.example` to `.env` and configure:
 
 ```ini
+# Required API Keys
 DAILY_API_KEY=           # Your Daily API key
+OPENAI_API_KEY=          # Your OpenAI API key (required for OpenAI bot)
+GEMINI_API_KEY=          # Your Gemini API key (required for Gemini bot)
+ELEVENLABS_API_KEY=      # Your ElevenLabs API key
+
+# Bot Selection
+BOT_IMPLEMENTATION=      # Options: 'openai' or 'gemini'
+
+# Optional Configuration
 DAILY_API_URL=           # Optional: Daily API URL (defaults to https://api.daily.co/v1)
-OPENAI_API_KEY=          # Your OpenAI API key
-CARTESIA_API_KEY=        # Your Cartesia API key
+DAILY_SAMPLE_ROOM_URL=   # Optional: Fixed room URL for development
 HOST=                    # Optional: Host address (defaults to 0.0.0.0)
 FAST_API_PORT=           # Optional: Port number (defaults to 7860)
 ```
 
+## Available Bots
+
+The server supports two bot implementations:
+
+1. **OpenAI Bot** (Default)
+
+   - Uses GPT-4 for conversation
+   - Requires OPENAI_API_KEY
+
+2. **Gemini Bot**
+   - Uses Google's Gemini model
+   - Requires GEMINI_API_KEY
+
+Select your preferred bot by setting `BOT_IMPLEMENTATION` in your `.env` file.
+
 ## Running the Server
 
 Set up and activate your virtual environment: