Another similar technique that's also helpful, is if we ask the Fedora
maintainer to create an EPEL9 version of the package, that way the
community can help maintain the package and you can just "mirror" EPEL
(assuming you keep an eye on the changes they make).
I did this recently when I asked the erofs-utils maintainer to create
an EPEL9 rpm for our erosfs related features we are working on:
https://src.fedoraproject.org/rpms/erofs-utils
Sandro Bonazzola
MANAGER, SOFTWARE ENGINEERING
Red Hat In-Vehicle Operating System