Additional premium features around the "article library" aspect of the extension. So for example an account to access it from mobile devices, AI topic classific

Additional premium features around the "article library" aspect of the extension. So for example an account to access it from mobile devices, AI topic classification, additional customisation etc. I think it's hard to make money from reader modes alone, with so many free alternatives. But you know more about that topic than I do. Any suggestions?