At Quizlet, we are working on problems in this space. https://quizlet.com/features/how-quizlet-works https://quizlet.com/features/how-quizlet-works I'm an eng

At Quizlet, we are working on problems in this space. https://quizlet.com/features/how-quizlet-works https://quizlet.com/features/how-quizlet-works I'm an engineer on the step-by-step Explanations team - if interested in learning more, shoot me an email (scott @ quizlet.com) and we can chat! Maybe this violates the objective of the OP - but it sounds like we'd have fun collaborating. We'd just be getting paid by the same company to do so.