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Dockerfile

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+# Force x86_64 architecture for full PlatformIO compatibility
+FROM --platform=linux/amd64 python:3.11-slim
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    git \
+    curl \
+    build-essential \
+    usbutils \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install PlatformIO
+RUN pip install --no-cache-dir platformio
+
+# Set working directory
+WORKDIR /project
+
+# Copy configuration files
+COPY platformio.ini .
+
+# Pre-download platforms and tools (optional, speeds up subsequent builds)
+RUN pio pkg install --skip-dependencies || true
+
+# Default command
+CMD ["pio", "run"]