Hi Pierre! Very nice work, thanks for doing it! I've reviewed the whole series (7 patches), made some changes mostly to update to the latest current version of Docker 20.10.17 and containerd at 1.6.6, added a commit to address 'guix lint' issues and another one to allow the Docker system tests to pass on my old machine. I tested using some Docker load I had at hand and pushed the series. Thanks again! Closing. Maxim