Dockerfile

FROM python:3.12-slim

WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc \
    && rm -rf /var/lib/apt/lists/*

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

# Copy source code
COPY . .

# HF Spaces runs as non-root user
RUN useradd -m -u 1000 user && chown -R user:user /app
USER user

EXPOSE 7860

CMD ["python", "app.py"]