anchor.diff:      tree \
       zlib1g-dev \
       zsh \
  -    jq
  -
  -RUN \
  -  add-apt-repository ppa:neovim-ppa/stable && \
  -  apt-get update && \
  -  apt-get install -y neovim
  -
  -RUN \
  -  apt-get clean && \
  -  mkdir -p /var/run/sshd && \
  -  locale-gen en_US.UTF-8 && \
  -  useradd -ms /usr/bin/zsh runcom && \
  -  echo "runcom:runcom" | chpasswd && \
  -  adduser runcom sudo
  -
  -RUN \
  -  apt-get install -y \
  +    jq \
       golang \
       ghc \
       pandoc \
  
positive.code: RUN \
    apt-get update && \
    apt-get install -y \
      build-essential \
      cifs-utils \
      cmake \
  
negative.code:     python3-cairo \
      python3-matplotlib python3-pandas \
      python3-sklearn \
      openjdk-8-jre-headless && \
    apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E298A3A825C0D65DFD57CBB651716619E084DAB9 && \
    add-apt-repository 'deb [arch=amd64,i386] https://cran.rstudio.com/bin/linux/ubuntu xenial/' && \
    add-apt-repository ppa:neovim-ppa/stable && \
    apt-get update && \
    apt-get install -y neovim r-base && \
    mkdir -p /var/run/sshd && \
    locale-gen en_US.UTF-8 && \
    useradd -ms /usr/bin/zsh runcom && \
    echo "runcom:runcom" | chpasswd && \
    adduser runcom sudo && \
    apt-get clean
  