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+FROM python:3.10-slim
+
+# Install system deps
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    ffmpeg \
+    git \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+# Install Python deps
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy app
+COPY app.py .
+
+# Railway sets $PORT (default 8000), so expose that
+EXPOSE 8000
+ENV PORT=8000
+
+# Start FastAPI with uvicorn (not gunicorn)
+CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "8000"]