anchor.diff:      libxml2-dev \
       libxmlsec1-dev \
       libxslt1-dev \
  -    software-properties-common \
       swig \
       # openedx requirements
       gettext \
  
positive.code: 
  # Install system requirements
  RUN apt-get update && \
      # Global requirements
      DEBIAN_FRONTEND=noninteractive apt-get install --yes \
      build-essential \
  
negative.code:     libxslt1-dev \
      ntp \
      pkg-config \
      python3.8-dev \
      python3.8-venv \
      &&rm -rf /var/lib/apt/lists/*
  
  RUN locale-gen en_US.UTF-8
  ENV LANG en_US.UTF-8
  ENV LANGUAGE en_US:en
  ENV LC_ALL en_US.UTF-8
  
  WORKDIR /edx/app/edxapp/edx-platform
  
  