Dockerfile

FROM python:3.10-slim

# Install system dependencies including build tools for webrtcvad
RUN apt-get update && apt-get install -y \
    build-essential \
    libsndfile1 libsndfile1-dev \
    ffmpeg \
    git \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

# Copy entire project
COPY . .

# Install Python dependencies
RUN pip install --no-cache-dir -r backend/requirements.txt

# Download models during build
RUN cd backend && python download_models.py

# Expose port (HF Spaces uses 7860)
EXPOSE 7860

# Start the application
CMD ["gunicorn", "--bind", "0.0.0.0:7860", "--workers", "1", "--timeout", "300", "backend.wsgi:app"]