MarsSeed [1] filed a deletion request for yawls [2]: Orphan package from 2016 Reported broken in 2017. Upstream discontinued since 2015. [a]
There are alternative solutions for auto-adjusting the display brightness. [a]: https://launchpad.net/yawls [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/yawls/
