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+FROM python:3.9
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    libsndfile1 \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN useradd -m -u 1000 user
+USER user
+ENV PATH="/home/user/.local/bin:$PATH"
+
+WORKDIR /app
+
+# Copy requirements first to leverage Docker cache
+COPY --chown=user requirements.txt requirements.txt
+RUN pip install --no-cache-dir --upgrade -r requirements.txt
+
+# Copy the rest of the application
+COPY --chown=user . /app
+
+# Set environment variables
+ENV FLASK_APP=app.py
+ENV FLASK_ENV=production
+
+# Create necessary directories
+RUN mkdir -p /app/heart/models
+
+# Expose the port the app runs on
+EXPOSE 7860
+
+# Command to run the application
+CMD ["gunicorn", "--bind", "0.0.0.0:7860", "--worker-class", "geventwebsocket.gunicorn.workers.GeventWebSocketWorker", "app:app"]