anchor.diff:        libjpeg-dev \
         libpng-dev \
         libssh2-1-dev \
  +      libssl-dev \
         libtiff5-dev \
         libxml2-dev \
         nodejs \
  -      npm \
  +      pandoc \
         python3 \
         python3-pip \
         r-base \
  
positive.code: COPY . /code
  WORKDIR /code
  
  RUN npm install
  RUN make -C py setup
  
  # WIP: Skipping for now, until all system deps are determined and installed.
  # RUN make -C r setup
  
negative.code: 
  ARG DEBIAN_FRONTEND=noninteractive
  RUN apt-get update \
   && apt-get install -y \
        curl \
   && curl -sL https://deb.nodesource.com/setup_14.x | bash - \
   && apt-get update \
   && apt-get install -y \
        libcurl4-openssl-dev \
        libfontconfig1-dev \
  