esskayesss [1] filed a deletion request for whatsapp-nativefier-arch- electron [2]:
It has long been marked out of date. It is also unusable at this point as Whatsapp demands Chrome version 60+. Besides, there are similar alternatives on the AUR already. [1] https://aur.archlinux.org/account/esskayesss/ [2] https://aur.archlinux.org/pkgbase/whatsapp-nativefier-arch-electron/
