Chances are, the only thing interesting from that package is a single source file, which you could just copy over to your project.
However, the article wasn't about this general problem of package management. It's a problem of somebody wanting to test out some code, and went down the rabbit hole without understanding what they're doing (not a slight at them - it's hard to know what to do).
Ideally, you don't go down that route, because testing out some code doesn't require solving the packaging problem.