$ mount -t none -o bind /mnt/koji/ /var/lib/mock/f42-build-58969118-6569508/root/mnt/koji
$ mount -t none -o bind /mnt/koji/compose/updates/Fedora-42-updates-20250421.0 /var/lib/mock/f42-build-58969118-6569508/root/mnt/koji/compose/updates/Fedora-42-updates-20250421.0