Add initial implementation

Dockerfile.template

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+FROM alpine:3.22 AS verify
+COPY TEMPLATE_ROOTFS_FILE /
+
+RUN apk add --no-cache curl tar zstd
+
+RUN TEMPLATE_ROOTFS_DOWNLOAD && \
+    echo "TEMPLATE_ROOTFS_HASH" > /tmp/sha256sums.txt && \
+    sha256sum -c /tmp/sha256sums.txt && \
+    mkdir /rootfs && \
+    tar -C /rootfs --extract --file TEMPLATE_ROOTFS_FILE
+
+FROM scratch AS root
+
+LABEL org.opencontainers.image.title="TEMPLATE_TITLE"
+LABEL org.opencontainers.image.description="Official containerd image of Arch Linux, a simple, lightweight Linux distribution aimed for flexibility."
+LABEL org.opencontainers.image.authors="Amir Husayn Panahifar <ahp@panahifar.ir> (@ahp)"
+LABEL org.opencontainers.image.url="https://git.parchlinux.org/ahp/parchlinux-docker/-/blob/main/README.md"
+LABEL org.opencontainers.image.documentation="https://wiki.parchlinux.org/title/Docker#Parch_Linux"
+LABEL org.opencontainers.image.source="https://git.parchlinux.org/ahp/parchlinux-docker"
+LABEL org.opencontainers.image.licenses="GPL-3.0-or-later"
+LABEL org.opencontainers.image.version="TEMPLATE_VERSION_ID"
+LABEL org.opencontainers.image.revision="TEMPLATE_REVISION"
+LABEL org.opencontainers.image.created="TEMPLATE_CREATED"
+
+COPY --from=verify /rootfs/ /
+
+# RUN ldconfig && \
+#     sed -i '/BUILD_ID/a VERSION_ID=TEMPLATE_VERSION_ID' /etc/os-release
+
+ENV LANG=C.UTF-8
+CMD ["/usr/bin/bash"]

docker-library.template

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+# https://git.parchlinux.org/ahp/parchlinux-docker
+
+Maintainers: Amir Husayn Panahifar <ahp@panahifar.ir> (@ahp),
+GitRepo: https://git.parchlinux.org/ahp/parchlinux-docker.git