Nope, don't use koji/docker.
I sometimes build on a aarch64 machine (with armv5tel userland).
I find that redsleeve rpms 'just' install on aarch64. When I use
mock, I always start it with "linux32" in front. Now the aarch64
machine reports itself as armv8l. I always assumed that that could
be better for the end-result.
At the moment I am rebuilding RedHat's codeready-builder-for-rhel-8-x86_64-source-rpms (Red Hat CodeReady Linux Builder for RHEL 8 x86_64 (Source RPMs)) repo so I can build the docker RPM for EL (need a resent golang to compile).
Can you point me to a list of source rpms that are in CodeReady Linux Builder?
I have a RH developer account, but was not able to find CodeReady Linux Builder in the customer portal. There are two other types of CodeReady, but they seem to be only an IDE.