I love the idea, so I immediately gave it a shot.

https://recalll.co/app/?q=haskell%20fibonnaci doesn't give me any useful results. Same query on google gives me exclusively useful results (at least on page 1).

I wish you the best for your project, and I'm sharing my use case in the hopes you can continue to improve, not to discourage.

Edit: Doh; it's because I can't spell. Two c's and 1 n and I do get some relevant results. Google has the "fix it for me" hidden from me.