Alad [1] filed a deletion request for pakku [2]: Unmaintained upstream and release not working with newer libalpm versions. A maintained fork is provided in the pakku-git package (it does however not provide new releases the pakku package could benefit from).
[1] https://aur.archlinux.org/account/Alad/ [2] https://aur.archlinux.org/pkgbase/pakku/
