multi stage the build and add lib path so emby libs do not always take precedence to sys libs

Dockerfile.armhf

@@ -1,14 +1,7 @@
-FROM lsiobase/ubuntu:arm32v7-bionic
+FROM lsiobase/ubuntu:arm32v7-bionic as buildstage
 
-# set version label
-ARG BUILD_DATE
-ARG VERSION
+# build args
 ARG EMBY_RELEASE
-LABEL build_version="Linuxserver.io version:- ${VERSION} Build-date:- ${BUILD_DATE}"
-LABEL maintainer="thelamer"
-
-#Add needed nvidia environment variables for https://github.com/NVIDIA/nvidia-docker
-ENV NVIDIA_DRIVER_CAPABILITIES="compute,video,utility"
 ENV DEBIAN_FRONTEND="noninteractive" 
 
 RUN \
@@ -36,21 +29,30 @@ RUN \
 	/tmp/opt/emby-server/system/* \
 	/tmp/opt/emby-server/lib/samba/* \
         /tmp/opt/emby-server/lib/* \
-	/tmp/opt/emby-server/bin/ff* && \
- echo "**** cleanup ****" && \
- apt-get purge -y \
-        cpio \
-        jq \
-        rpm2cpio && \
- apt-get autoremove -fy && \
- rm -rf \
-	/tmp/* \
-	/var/lib/apt/lists/* \
-	/var/tmp/*
+	/tmp/opt/emby-server/bin/ff*
+
+# runtime stage
+FROM lsiobase/ubuntu:arm32v7-bionic
+
+# set version label
+ARG BUILD_DATE
+ARG VERSION
+LABEL build_version="Linuxserver.io version:- ${VERSION} Build-date:- ${BUILD_DATE}"
+LABEL maintainer="thelamer"
+
+# add needed nvidia environment variables for https://github.com/NVIDIA/nvidia-docker
+ENV NVIDIA_DRIVER_CAPABILITIES="compute,video,utility"
 
 # add local files
+COPY --from=buildstage /app/emby /app/emby
 COPY root/ /
 
+# lib setup
+RUN \
+ echo "**** add lib path ****" && \
+ echo "/app/emby" > /etc/ld.so.conf.d/emby.conf && \
+ ldconfig
+
 # ports and volumes
 EXPOSE 8096 8920
 VOLUME /config /transcode