anchor.diff:      && chown -R $NB_USER:users /opt/work \
       && mkdir -p -m 777 /opt/work/examples \
       && mkdir -p -m 777 /opt/work/src \
  +    && mkdir -p -m 777 /opt/work/env \
       && mkdir -p -m 777 /opt/work/bins \
       && mkdir -p -m 777 /opt/work/libs \
       && mkdir -p -m 777 /opt/work/configs \
  
positive.code: COPY ./configs/ /opt/work/configs/
  COPY ./bins/ /opt/work/bins/
  COPY ./src/ /opt/work/src/
  COPY ./examples /opt/work/examples/
  
  # Assign all permissions over:
  
negative.code:     && mkdir -p -m 777 /opt/work/data \
      && chown -R $NB_USER:users /opt/work/examples \
      && chown -R $NB_USER:users /opt/work/src \
      && chown -R $NB_USER:users /opt/work/env \
      && chown -R $NB_USER:users /opt/work/bins \
      && chown -R $NB_USER:users /opt/work/libs \
      && chown -R $NB_USER:users /opt/work/configs \
  