This sounds interesting. Can you share more please?
It sounds like there is some multilingual input text on the basis of which you make recommendations, but I think you would have called that a search engine rather than recommender.
My approach to AI is somewhat conservative because of working in a law-adjacent field where explainability is paramount. When it comes to getting "smart" I prefer forward-chaining logic over facts, and facts include predictions from models too. But at least there is a "judge"/engine to coordinate how the predictions from the ensemble of models maps to actions. I love me some pertained neural nets, but use them more as black box appliances.
There's also https://github.com/jruizgit/rules but haven't tried it yet.