Nobody writes code in terms of Nands but there is Nand to Tetris course ("The Elements of Computing Systems: Building a Modern Computer from First Principles" book) https://www.nand2tetris.org

pytorch to LLMs has a lot to show even without Python to pytorch part. It reminds me of "Neural Networks: Zero to Hero" Andrej Karpathy https://m.youtube.com/playlist?list=PLAqhIrjkxbuWI23v9cThsA9... Prerequisites: solid programming (Python), intro-level math (e.g. derivative, gaussian). https://karpathy.ai/zero-to-hero.html