prevent layer duplication by copying extracted archive

Dockerfile.aarch64

@@ -13,6 +13,7 @@ RUN \
     nodejs \
     npm && \
   npm install --global yarn && \
+  ln -s /usr/lib/aarch64-linux-gnu/libz.so.1 /usr/lib/aarch64-linux-gnu/libz.so && \
   echo "**** build altus ****" && \
   if [ -z "${ALTUS_VERSION+x}" ]; then \
     ALTUS_VERSION=$(curl -sX GET "https://api.github.com/repos/amanharwara/altus/releases/latest" \
@@ -22,7 +23,13 @@ RUN \
   cd /tmp/altus && \
   yarn install && \
   yarn run make -p linux && \
-  mv out/make/*.AppImage /tmp/altus.app
+  mv out/make/*.AppImage /tmp/altus.app && \
+  cd /tmp && \
+  chmod +x /tmp/altus.app && \
+  ./altus.app --appimage-extract && \
+  mv squashfs-root /opt/altus && \
+  find /opt/altus -type d -exec chmod go+rx {} + && \
+  ln -s /opt/altus/Altus /opt/altus/altus
 
 # runtime stage
 FROM ghcr.io/linuxserver/baseimage-kasmvnc:arm64v8-debianbookworm
@@ -37,7 +44,7 @@ LABEL maintainer="thelamer"
 # title
 ENV TITLE=Altus 
 
-COPY --from=build-stage /tmp/altus.app /tmp/altus.app
+COPY --from=build-stage /opt/altus /opt/altus
 
 RUN \
   echo "**** install packages ****" && \
@@ -47,14 +54,6 @@ RUN \
     libatk1.0-0 \
     libatk-bridge2.0-0 \
     libgtk-3-0 && \
-  ln -s /usr/lib/aarch64-linux-gnu/libz.so.1 /usr/lib/aarch64-linux-gnu/libz.so && \
-  echo "**** install altus studio from appimage ****" && \
-  cd /tmp && \
-  chmod +x /tmp/altus.app && \
-  ./altus.app --appimage-extract && \
-  mv squashfs-root /opt/altus && \
-  find /opt/altus -type d -exec chmod go+rx {} + && \
-  ln -s /opt/altus/Altus /opt/altus/altus && \
   sed -i 's|</applications>|  <application title="Altus*" type="normal">\n    <maximized>yes</maximized>\n  </application>\n</applications>|' /etc/xdg/openbox/rc.xml && \
   printf "Linuxserver.io version: ${VERSION}\nBuild-date: ${BUILD_DATE}" > /build_version && \
   echo "**** cleanup ****" && \