Predictive rating - collaborative filtering


I’m sure I’m not first on trying this but can’t find other posts about it. I have a recommendation site for beauty products that - based on a users’ past product preferences (products rated on a scale of 1 to 5) - predicts what a user would score a product she has not yet tried (just like Netflix and other systems we use daily).

Although I have a decent understanding of how I want this set up on a math-level I am not sure how I should set this up in bubble. Each time a user rates a product I need to send that data somewhere to add to the massive matrix of users, products and ratings that is the foundation for the model. But where? And is there a plugin or a service I can call with an API that can simplify this setup?

Big thanks in advance!

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