Dockerfile

FROM python:3.10

# Install system dependencies
RUN apt-get update && \
    apt-get install -y ffmpeg libsndfile1 git-lfs && \
    git lfs install && \
    rm -rf /var/lib/apt/lists/*

# Create non-root user
RUN useradd -m -u 1000 user
USER user
WORKDIR /home/user/app

ENV PATH="/home/user/.local/bin:$PATH"
ENV PYTHONUNBUFFERED=1

# Copy files
COPY --chown=user . .

# Upgrade pip
RUN pip install --no-cache-dir --upgrade pip

# Install all Python deps in ONE layer (important)
RUN pip install --no-cache-dir \
    gradio \
    matchering \
    symusic \
    git+https://github.com/descriptinc/audiotools \
    git+https://github.com/TEAMuP-dev/pyharp

EXPOSE 7860

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