anchor.diff:    libtest-sharedfork-perl \
     libtest-tcp-perl \
     libtest-weaken-perl \
  -  libunix-processors-perl \
     libzmq3-dev
   
   # Install LaTeXML-Plugin-Cortex's master branch via cpanminus
  
positive.code: WORKDIR /opt/latexml
  RUN cpanm --verbose --skip-installed https://github.com/brucemiller/LaTeXML/tarball/master
  
  # cortex worker dependencies
  RUN set -ex && apt-get update -qq && apt-get install -qy \
    libarchive-zip-perl \
  
negative.code: ##
  ## run example via:
  ##
  ## docker run --cpus="16.0" --memory="32g" --shm-size="16g" latexml-plugin-cortex:1.0 latexml_harness 131.188.48.209
  
  FROM ubuntu:18.04
  ENV TZ=America/New_York
  RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
  
  