Hey folks, I'm the author of this library.
I actually renamed it to 'butterdb' a while ago because some people found fuckitdb hard to swallow. You can check out the code here: https://github.com/Widdershin/butterdb. I have grown a bit as a programmer since then, but I appreciate any feedback you might have.
I actually used this in production against my own recommendation to run the matching for /r/longboarding's Secret Santa. All of our data came from Google Forms, so it just made sense.
Hit me up if you have any questions.