Something like:
sudo touch /etc/subuid /etc/subgid
sudo usermod --add-subuids 200000-265536 --add-subgids 200000-265536 $(whoami)
curl -fsSL https://get.docker.com/rootless | sh
Not sure if this was needed as well:
cat <<EOF | sudo sh -x
# Load nf_tables module
modprobe nf_tables
EOF