diff --git a/Dockerfile b/Dockerfile
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+# Use official Python slim image
+FROM python:3.10-slim
+
+# Set working directory
+WORKDIR /app
+
+# Install system dependencies
+RUN apt-get update \
+    && apt-get install -y gcc libpq-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy requirements and install
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy application code
+COPY . .
+
+# Expose nothing (bot connects outbound)
+
+# Default command
+CMD ["python", "discord_lnbits_bot.py"]
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