anchor.diff:          lmodern \
           texlive \
           texlive-lang-french \
  +		texlive-lang-german \
           texlive-luatex \
           texlive-pstricks \
           texlive-xetex \
  
positive.code: ENV DEBCONF_NOWARNINGS yes
  
  #
  # Debian
  #
  RUN set -x && \
  
negative.code:         echo "Acquire::http::Proxy \"${APT_CACHER}\";" | tee /etc/apt/apt.conf.d/01proxy ; \
      fi; \
      apt-get -qq update && \
      apt-get -qy install --no-install-recommends --allow-unauthenticated \
          # for deployment
          openssh-client \
          rsync \
  