anchor.diff:    touch /etc/sudoers.d/treebox && { \
       echo "$username    ALL=NOPASSWD:/usr/sbin/service *"; \
       echo "$username    ALL=(www-data) NOPASSWD:ALL"; \
  -  } > /etc/sudoers.d/treebox
  -
  +  } > /etc/sudoers.d/treebox; \
  +  \
   # FIXME: I don't think I should need or want to create a system-user, however
   # usermod does not find the added user otherwise.
   # Also fix permissions for /home, /src and /srv
  -RUN \
     useradd -d /home/$username -s /bin/bash $username && \
     mkdir -vp /home/$username/project && \
     usermod $username -a -G sudo,staff,ssh && \
  
positive.code:   mv /etc/profile /tmp/profile; \
    { echo 'export PATH=$PATH:/usr/local/bin'; \
      cat /tmp/profile; \
    } >/etc/profile
  
  RUN { \
        echo ; \
        echo "if test -e ~/.bashrc ; then source ~/.bashrc ; fi "; \
      } >> /etc/bash.bashrc
  
  
  # Fancy up SSH
  RUN \
    figlet Treebox > /etc/ssh/banner && \
    echo "Banner /etc/ssh/banner" >> /etc/ssh/sshd_config
  
  
negative.code:     ln -s /usr/local/bin/$b.py /usr/local/bin/$b; done
  
  RUN \
    npm install --quiet -g coffeescript pm2 grunt grunt-cli webpack node-gyp && \
    npm update --quiet -g nan && \
    npm install --quiet --unsafe-perm -g zmq && \
    gem install --quiet sass
  