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It is from a 17 year old high school student: https://github.com/SullyChen .

That's not so relevant.

A smart, motivated 17 year old high school student could very well write an interesting ML library.

edit: removed negative negativity

The OP could have equally been saying that it's impressive that a 17 year old high school wrote such an interesting library.

So true, you got me on that one! I'm totally on board with this interpretation.