It would also require someone who uses runit. The docker daemon could be run manually so whatever init system you use, you need to know how you can run a process with it.
Except that you need to run /usr/bin/dockerd-rootless.sh and not dockerd directly. The daemon.json is also in a different folder
A workaround is to specify non-NFS data-root directory in ~/.config/docker/daemon.json as follows: