ticpu [1] filed a deletion request for v4l2loopback-obs-dkms [2]: OBS finally fixed the compatibility with the new v4l2loopback module API. This package is not needed anymore.
[1] https://aur.archlinux.org/account/ticpu/ [2] https://aur.archlinux.org/pkgbase/v4l2loopback-obs-dkms/
