Dockerfile

# ── Base image ────────────────────────────────────────────────────────────────
FROM python:3.11-slim

# ── System packages ───────────────────────────────────────────────────────────
# ffmpeg   — video processing
# fonts-*  — needed for ASS caption rendering inside FFmpeg
RUN apt-get update && apt-get install -y --no-install-recommends \
        ffmpeg \
        fonts-liberation \
        fonts-dejavu-core \
    && rm -rf /var/lib/apt/lists/*

# ── Working directory ─────────────────────────────────────────────────────────
WORKDIR /app

# ── Python dependencies (cached layer) ───────────────────────────────────────
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt \
    && pip install --no-cache-dir --upgrade yt-dlp

# ── App code ──────────────────────────────────────────────────────────────────
COPY . .

# ── HF Spaces always uses port 7860 ──────────────────────────────────────────
EXPOSE 7860

# ── Writable temp dir for jobs ────────────────────────────────────────────────
RUN mkdir -p /tmp/studiox && chmod 777 /tmp/studiox

# ── Start server ──────────────────────────────────────────────────────────────
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860", "--workers", "1"]