Mesa 19.1 for Fedora 29 and 30. This repo initially was used to expedite the process of using DXVK on these distros, as special Mesa patches were needed. These days though, all of the relevant DXVK patches are long since upstreamed. As a result, this is usually just identical to the upstream Mesa already included in the repos.
This is a companion discussion topic for the original entry at https://copr.fedorainfracloud.org/coprs/jerbear64/mesa_dxvk/