$ mount -t none -o bind /mnt/koji/ /var/lib/mock/eln-build-60994557-6587368/root/mnt/koji
$ mount -t none -o bind /mnt/koji/compose/eln/Fedora-eln-20250710.n.1 /var/lib/mock/eln-build-60994557-6587368/root/mnt/koji/compose/eln/Fedora-eln-20250710.n.1