I've read the README and watched the video, but I'm still not sure what this is doing? I know it can "synthesize [a] font at runtime", so does that mean it's cr

I've read the README and watched the video, but I'm still not sure what this is doing? I know it can "synthesize [a] font at runtime", so does that mean it's creating a random handwritten font as you type? But it's not based on the user's handwriting?