This my PKGBUILD for now:
LenovoLegionLinux: https://github.com/johnfanv2/LenovoLegionLinux Aur link: https://aur.archlinux.org/packages/lenovolegionlinux-git
legion-fan-utils-linux: https://github.com/Petingoso legion-fan-utils-linux Aur Link: https://aur.archlinux.org/packages/legion-fan-utils-linux-git
Thanks for @Petingoso and @johnfanv2 for creating the packages.
If the packages get deleted from the aur for some reason I will use this repo as backup (Its my frist time publishing a package for the aur but I think I dind’t break the guidelines).
This pkgbuild and package have no warranty use at your wrong risk.