Make sure the base-devel package is installed. Set up a directory where to clone all aur repo.
makepkg as normal usersudo pacman -U packagename.pkg.tar.zst (the name of the file can be found in the cloned repo)Aur package must be updated manually. If pacman updates dependencies for aur pkg, it needs to be rebuild
git pull in the cloned repomakepkg as normal usersudo pacman -U packagename.pkg.tar.zst (the name of the file can be found in the cloned repo)pacman -Rns PACKAGENAME