lizufyr [1] filed a orphan request for fromscratch-bin [2]:

Not updated for a long time, and current PKGBUILD doesn't work anymore.

I have created an updated PKGBUILD and would like to maintain this package in the future.

otherwise, here is an updated PKGBUILD that builds from the deb file available from github: https://lizufyr.eu/fromscratch-bin-PKGBUILD

[1] https://aur.archlinux.org/account/lizufyr/ [2] https://aur.archlinux.org/pkgbase/fromscratch-bin/