RPM Spec file to install https://github.com/Zamundaaa/VK_hdr_layer
That vulkan layer is necessary to use HDR on plasma 6. Making an RPM and associated COPR makes it easier to install/update on my desktop running Fedora Kinoite.
COPR available at https://copr.fedorainfracloud.org/coprs/atwebb/vk_hdr_layer_plasma6
Dependencies:
dnf group install "rpm development tools"
dnf install fedpkg
spectool -g vk_hdr_layer.spec
fedpkg --release f40 mockbuild
or any future fedora version like f41
, but this vulkan layer should get merged to Mesa drivers pretty quick. I saw a forum post saying ETA end of 2024.