This package exists in the AUR, so you can enable the AUR in pamac GTK, search for and mark the package for install, then when it asks you if you want to Edit Build File(s) do so. Change arch=('x86_64') to arch=('x86_64', 'aarch64') or arch=('any') then save and build/install. If it fails, check the errors to see if any dependencies need the arch line altered too.
if you prefer the cli, use yay. it will notice the package is for another arch and ask if you'd like to try building it for aarch64 anyway.
if you prefer the cli, use yay. it will notice the package is for another arch and ask if you'd like to try building it for aarch64 anyway.