Huh? Distros don't produce the overwhelming majority of the software or configuration they ship. There's no reason individual distros need to be part of this effort. This can scale with a central repository that any organization including manufacturers or suitably equipped individuals can contribute to. It just needs to be permissively licensed. The major distros or associated vendors such as Redhat or Ubuntu certainly have the resources to host such a thing and so does the Linux Foundation.

It's not like this is hypothetical. https://openprinting.github.io/