linuxKernel.packages.linux_6_8.v4l2loopback 0.12.7-unstable-2024-02-12-6.8.7 -> 0.13.1 https://repology.org/project/v4l2loopback/versions attrpath: linuxKernel.packages.linux_6_8.v4l2loopback creates too many duplicate PRs