The logic of “something similar already exists so don’t bother” is reductive. I am sure 99% of hobbyist software is useless to anyone but the person who wrote it. It still helps people learn and become professionals.
Remember a few weeks ago there was a post here by a high school student detailing building a laptop from scratch. Was that wasted effort because you can just buy a laptop? Was Linux wasted effort? Why does this project offend you so much that you keep commenting on it in such a negative way?