anchor.diff:      gettext-base \
       parallel \
       ledger \
  +    net-tools \
  +    libnss3-tools \
  +    cpulimit \
     && apt-get clean autoclean \
     && apt-get autoremove -y --purge \
     && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* \
  
positive.code:   && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* \
    && rm -rf /var/lib/{apt,dpkg,cache,log}/
  
  # Configure timezone and locale
  RUN apt-get -qq update \
    && apt-get install -y language-pack-en-base tzdata \
  
negative.code: # Utilities needed to run headless Chrome inside the docker container (see
  # https://github.com/GoogleChrome/puppeteer/blob/master/docs/troubleshooting.md)
  RUN apt-get -qq update \
    && apt-get install --no-install-recommends -y \
      gconf-service \
      libasound2 \
      libatk1.0-0 \
  