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+# -----------------------------------------------------------------------------
+# Dockerfile for building pico-loader (with .NET 9.0)
+# -----------------------------------------------------------------------------
+
+FROM --platform=linux/amd64 skylyrac/blocksds:dev-latest
+
+WORKDIR /workdir
+
+RUN apt-get update && apt-get install -y \
+    git \
+    make \
+    wget \
+    ca-certificates \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN wget https://packages.microsoft.com/config/ubuntu/22.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb \
+    && dpkg -i packages-microsoft-prod.deb \
+    && rm packages-microsoft-prod.deb \
+    && apt-get update \
+    && apt-get install -y dotnet-sdk-9.0 \
+    && rm -rf /var/lib/apt/lists/*
+
+ENV TARGET_PLATFORM=DSPICO
+
+COPY . .
+
+CMD ["sh", "-c", "make clean && make PICO_PLATFORM=${TARGET_PLATFORM}"]
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