DEEPGRAM_API_KEY=your_deepgram_key
CARTESIA_API_KEY=your_cartesia_key
OPENAI_API_KEY=your_openai_key

# Set to any value to enable tracing
ENABLE_TRACING=true
# OTLP endpoint (defaults to localhost:4317 if not set)
OTEL_EXPORTER_OTLP_ENDPOINT=http://localhost:4317
# Set to any value to enable console output for debugging
# OTEL_CONSOLE_EXPORT=true