acxz  filed a deletion request for ros-melodic-viso2-ros :
This package is not part of the ros melodic distribution: http://wiki.ros.org/viso2_ros and as such can be deleted.
 https://aur.archlinux.org/account/acxz/  https://aur.archlinux.org/pkgbase/ros-melodic-viso2-ros/
Request #16141 has been rejected by Muflone :
I'm sorry but I cannot understand why this package should be deleted as long it builds fine