MarsSeed [1] filed a deletion request for ros-noetic-yocs-velocity- smoother [2]:
Fails to build. Upstream is unmaintained for ROS1 (Melodic/Noetic) since 2017. [a] [a]: http://github.com/yujinrobot/yujin_ocs/commits/release/0.8-melodic [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/ros-noetic-yocs-velocity-smoother/
