Let's work together to finish up the documentation in https://gitlab.cee.redhat.com/coreos/team-operations/-/merge_requests/192 and also re-deploy the builder since it is probably now wildly out of date.

Please work with rravanel and rh-ee-marmijo on this.

At the end of this we should have a freshly re-deployed ppc64le RHCOS builder and some documentation to follow for when we need to deploy next time.