$ mount -t none -o bind /mnt/koji/ /var/lib/mock/f40-build-59109773-6571138/root/mnt/koji
$ mount -t none -o bind /mnt/koji/compose/updates/Fedora-40-updates-testing-20250426.0 /var/lib/mock/f40-build-59109773-6571138/root/mnt/koji/compose/updates/Fedora-40-updates-testing-20250426.0