flying-sheep [1] filed a deletion request for libinput-config-git [2]: Unmaintained. The website says:

Since I wrote this hack, libinput has introduced its own, much cleaner solution for fixing broken devices — a Lua plugin system. This project will no longer receive updates, and it'll be preserved in the current form indefinitely.

[1] https://aur.archlinux.org/account/flying-sheep/ [2] https://aur.archlinux.org/pkgbase/libinput-config-git/