Rebuild kernel rpm - where is system-sb-certs?

I am trying to rebuild the kernel rpm for RL 8 and bumping into a problem with the BuildRequires field and this package which I assume is secureboot certs?

No matching package to install: 'system-sb-certs'

Where would I find this package?

thanks

You can find the package (rocky-sb-certs) in the devel repository. You can enable it by issuing --enablerepo devel with your mock command.