anchor.diff:      matplotlib \
       astropy \
       photutils \
  +    zmq \
       ; do pip3 install $x; done \
       && rm -Rf /root/.cache/pip
   
  
positive.code:     && cd qdo \
      && python3 setup.py install
  
  # Technically we could delete everything in /src at this point...
  
  # python = python3
  RUN ln -s /usr/bin/python3 /usr/bin/python
  
  
negative.code:     && cd /src/legacypipe/py \
      && ln -s /src/legacyzpts/py/legacyzpts .
  
  # up!
  RUN cd /src/legacypipe && git pull && echo 1
  