Eschwartz [1] filed a deletion request for yaics-git [2]:
Package does not use proper source urls, instead using an old style
git clone from 2013. It does not use a pkgver function at all, instead
hardcoding some weird date.
It claims to be an -any package but builds ELF binaries.
It makedepends on packages from base-devel.
It hardcodes make -j4.
It does not use make install but cp's files by hand.
Upstream development is dead, so we don't really need a git version...
[1] https://aur.archlinux.org/account/Eschwartz/
[2] https://aur.archlinux.org/pkgbase/yaics-git/