anchor.diff:      apt-get clean && \
       rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
   
  +# Declare environment variables
   ENV CONDA_DIR /opt/conda
   ENV PATH $CONDA_DIR/bin:$PATH
   ENV NB_USER local
  
positive.code:     mkdir /home/$NB_USER/.jupyter
  
  # Install and update Miniconda
  # RUN echo 'export PATH=/opt/conda/bin:$PATH' > /etc/profile.d/conda.sh && \
  RUN wget --quiet http://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh -O ~/miniconda.sh && \
      /bin/bash ~/miniconda.sh -f -b -p $CONDA_DIR && \
      rm ~/miniconda.sh
  
negative.code:     mkdir -p $CONDA_DIR && \
      chown $NB_USER $CONDA_DIR
  
  # Switch to local user
  USER $NB_USER
  
  # Setup local home directory
  