The project/script is freaking great, it's well-written but its installation method needs some work.
It symlinks from the git cloned directory to /usr/local/bin during installation.
When it runs, it does helpfully tell you which tools it needs, but each of those tools has a different install method:
* two are system packages
* one is a Go executable
* another a php composer package
* another is installed via npm
(that's a lot of extra language dependencies for a single script if you don't already have everything installed)