yochananmarqos [1] filed a deletion request for harfbuzz-bin-2.9.1 [2]:

There is no official binary release. An Arch package should not be used as the source.

[1] https://aur.archlinux.org/account/yochananmarqos/ [2] https://aur.archlinux.org/pkgbase/harfbuzz-bin-2.9.1/