$ mount -t none -o bind /mnt/koji/ /var/lib/mock/eln-build-59109398-6571135/root/mnt/koji
$ mount -t none -o bind /mnt/koji/compose/eln/Fedora-eln-20250426.n.0 /var/lib/mock/eln-build-59109398-6571135/root/mnt/koji/compose/eln/Fedora-eln-20250426.n.0