anchor.diff:  # Make the following massive touch a bit quicker by deleting content:
   RUN rm -rf /root/.opam/repo /root/.opam/system /home /boot /opt /media /mnt /srv
   
  -RUN touch /img_creation && find /root /usr /var /lib /bin /sbin -type f | \
  -      xargs touch -m -r /img_creation && \
  +RUN touch /img_creation && \
  +    find /root /usr /var /lib /bin /sbin -type f | xargs touch -m -r /img_creation && \
       sleep 1.1 && \
       find /root/.opam/ramen -type f -name META -exec sed -i -e /exists_if/d {} \; && \
       fprobe -i eth0 -fip localhost:2055 && \
       (timeout 10s collectd -f -C /etc/collectd/collectd.conf || true) && \
  +    ramen_configurator --help && \
       ramen start -d --daemon && sleep 2 && \
       ramen add --op 'SELECT MIN time, fit_multi(3, value, time) AS smth1 FROM demo/collectd' \
                 --op 'READ AND DELETE FILES "/tmp/test.csv" PREPROCESS WITH "lz4 -d -c" (smth1 string, smth2 u128)' \
  
positive.code: ENTRYPOINT ["/start"]
  
  # Default arguments if not provided on `docker run` command line:
  CMD ["--save-conf"]
  
  # TODO: where to store stuff
  # CMD ["--directories etc"]
  
negative.code:     opam switch install ramen --alias-of 4.05.0+flambda
  
  # Rebuild a new image from here
  RUN echo "version 11"
  
  # Install ramen
  RUN opam update && \
  