He goes to say that "If I were the patenting type, this would be the thing you would patent. ps. I don't regret not patenting anything."
I mean come on. Every package has a .yaml manifest where there's a download link for every architecture, a hash, a version and an installation recipe. There's nothing to patent here. It would be extremely hard to argue there's no prior art, considering most languages and distributions have been shipping with package managers built just like these for years. Even my text editor has one!
Realistically, the author managed to get a lot of attention for his other startup for almost no cost. By bashing the company that's trendy to bash right now.