This is a PKGBUILD for the fuzz type-checker for Z.
Clone this repository and run makepkg to build the package according to the PKGBUILD script.
git clone https://github.com/njurgens/fuzz-zed-pkgbuild.git
cd fuzz-zed-pkgbuild
makepkg
Install the package with pacman.
pacman -U fuzz-zed-3.4.1-1-x86_64.pkg.tar.gz
The fuzz type-checker is a project by Mike Spivey. See his website for more details http://spivey.oriel.ox.ac.uk/mike/fuzz/.