I have a question about ranking results based on a string instead of boolean or numeric value. I use Algolia to search trough a collection of books. In this collection of books there are books in different languages. The language is stored as a string for example: “dut” (Dutch), “eng” (English) and “ger” (German). Because our primary user is Dutch we want to give books that have language code “dut” a higher ranking but I can’t find a way to accomplish this, because the custom ranking only seems to works with boolean or numeric values. Who can help me with this? I can’t change the way it is stored because it has a direct connection with a 3th party who supplies us with the data about the books.