anchor.diff:    && apt-get -qq update \
     && apt-get install -y \
       git \
  +  && apt-get clean autoclean \
  +  && apt-get autoremove -y --purge \
  +  && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* \
  +  && rm -rf /var/lib/{apt,dpkg,cache,log}/
  +
  +# Install the packaged diff-so-fancy
  +RUN apt-get -qq update \
  +  && apt-get install -y software-properties-common \
  +  && apt-add-repository -y ppa:aos1/diff-so-fancy \
  +  && apt-get -qq update \
  +  && apt-get install -y \
  +    diff-so-fancy \
     && apt-get clean autoclean \
     && apt-get autoremove -y --purge \
     && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* \
  
positive.code: ENV PATH /root/.local/bin:$PATH
  ENV PATH $NVM_DIR/version/node/v$NODE_VERSION/bin:$PATH
  ENV NODE_PATH $NVM_DIR/version/node/v$NODE_VERSION/lib/node_modules
  
  USER root
  
  
negative.code:   && apt-get autoremove -y --purge \
    && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* \
    && rm -rf /var/lib/{apt,dpkg,cache,log}/
  
  # Utilities needed for gopro video & image processing
  RUN apt-get -qq update \
  