I initially had a Rust-based word cloud generator that generates word clouds in high resolution in ~100 milliseconds whereas it would take other generators a couple seconds to do the same thing. Does the world need a super-fast word cloud generator? No. Do I want a super-fast word cloud generator? Yes.

I later found enough optimizations to reduce the generation speed all the way down to ~16ms. Do I need a word cloud generator that fast? No. But if I have a word cloud generator it's going to be as fast as possible dammit.