$ mount -t none -o bind /mnt/koji/ /var/lib/mock/eln-build-61064889-6588442/root/mnt/koji
$ mount -t none -o bind /mnt/koji/compose/eln/Fedora-eln-20250715.n.2 /var/lib/mock/eln-build-61064889-6588442/root/mnt/koji/compose/eln/Fedora-eln-20250715.n.2