Probably should have committed a long time ago...

build/Dockerfile

@@ -0,0 +1,27 @@
+FROM archlinux:latest
+
+# Update system and install build tools
+RUN pacman -Syu --noconfirm && \
+    pacman -S --noconfirm base-devel git sudo wget
+
+# Create build user
+RUN useradd -m -G wheel builder && \
+    echo "builder ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers
+
+# Create output directory
+RUN mkdir -p /output && chown builder:builder /output
+
+USER builder
+WORKDIR /home/builder
+
+# Copy package list
+COPY --chown=builder:builder packages ./
+
+# Copy build scripts
+COPY --chown=builder:builder build-packages.sh ./
+COPY --chown=builder:builder build-aur.sh ./
+
+# Make scripts executable
+RUN chmod +x build-packages.sh build-aur.sh
+
+CMD ["./build-packages.sh"]