I think to become an AI or ML developer, you would need to have a strong understanding of programming languages such as Python, R, or Java. You would also need to have a solid foundation in mathematics, particularly in linear algebra, calculus, and probability theory. 

To be an AI or ML developer, you need to have a strong understanding of the fundamentals of artificial intelligence and machine learning, including algorithms, data structures, and programming languages. You should also be familiar with tools such as TensorFlow, PyTorch, and Scikit-Learn. Additionally, you should have a good understanding of mathematics, statistics, and probability. Finally, you should be familiar with the latest trends in AI and ML, such as deep learning, natural language processing, and computer vision.
It is possible to use OpenAI's Fine-tunning to create a personalized news feed, but it requires a lot of knowledge and experience. It is not something that can be done easily or quickly, and it is