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@@ -17,10 +17,11 @@ RUN case "${TARGETARCH}" in \
     esac
 
 # build rootfs
-RUN apk add --no-cache bash xz ${PACKAGES//,/ }
+RUN apk add --no-cache ${PACKAGES//,/ }
 
 # s6 overlay
-RUN ARCH="$(cat /arch)" && \
+RUN mkdir -p /root-out && \
+    ARCH="$(cat /arch)" && \
     curl -fsSL https://github.com/just-containers/s6-overlay/releases/download/v${S6_OVERLAY_VERSION}/s6-overlay-noarch.tar.xz \
       | tar -C "${ROOTFS}" -Jxpf - && \
     curl -fsSL https://github.com/just-containers/s6-overlay/releases/download/v${S6_OVERLAY_VERSION}/s6-overlay-${ARCH}.tar.xz \