I have mixed feelings about these kinds of tools. I can understand it might be nice to have a personal library of PDF books and searching in them. I can't think of a time I've ever wished I could search my bookshelf in that way, but you never know. Obviously I use tools like ripgrep for searching codebases and the like. But the extreme flexibility of this one in particular (and others like MacOs Spotlight) makes it s…
It's more intuitive to simple search for something in the something you are looking for and clicking it.
I haven't used a folder organization structure in many many years. Other than the defaults for my cloud folders and a separation between Personal + Work.