anchor.diff:      chmod 0440 /etc/sudoers && \
       chmod g+w /etc/passwd && \
       usermod -aG dialout $USER && \
  +    chmod +x /sbin/tini && \
       mkdir $WORK && \
       # Configure prompt
       echo 'PS1="\u@\h:\W$ "' >> ${HOME}/.bashrc && \
  
positive.code: ENV WORK                ${HOME}/work
  ENV                     TERM="xterm-color"
  
  # Create user, enable X forwarding, add to group dialout
  # -e DISPLAY=$DISPLAY -v /tmp/.X11-unix:/tmp/.X11-unix
  RUN useradd -m -s /bin/bash -N -u $UID $USER && \
  
negative.code: 
  USER root
  
  ENTRYPOINT ["/sbin/tini", "--", "entrypoint.sh"]
  CMD ["bash"]
  
  COPY entrypoint.sh /usr/local/bin/
  COPY h2spec /usr/local/bin/
  COPY coap-client /usr/local/bin/
  