How to Put Water in Project?

[Mashimaro7]

Is there no way to just simply install the water script from this repo? I spent a good hour or two trying to figure out how to get it into my project, but i can't. The water is using a script called "Water" but i can't find it anywhere. I literally just want to put the water in my scene, if i drag the whole assets folder in there's a bunch of missing packages and errors, i tried installing them one by one but it's not working out.

Hope someone can help me, i know this package seems long abandoned but it'd be great if there was a way to get the water out of it somehow.