anchor.diff:          python \
           python-dev \
           python-setuptools \
  +        rlwrap \
           screen \
           sudo \
           supervisor \
  
positive.code:         jq \
          less \
          locales \
          make \
          man-db \
          manpages \
  
negative.code: ENV DEBIAN_FRONTEND noninteractive
  RUN apt-get update && \
      apt-get install -y --no-install-recommends \
          apt-transport-https \
          bash-completion \
          build-essential \
          ca-certificates \
          clang \
          cron \
          curl \
  