Back in the old days, before 2014, people used to make computers do things just for fun. We'd write code because writing code is enjoyable, and hack on projects just to see if we could. If it made something that other people wanted to use that was a bonus, but hacking and experimenting was an end in itself. (The same, incidentally, went for writing blogs and for making YouTube videos).
In the last ten years most of us have lost sight of that in favor of everything needing to have an "audience" or a "use case"—if there's no path to monetization then we struggle to see the point. But some of us still build things just because we can, so from time to time you'll see a project like this that hearkens back to the old school hacker spirit and has no point besides to see if we could.