True that based on my experience the variable names and function names remains in English despite the prompt, maybe its just the convention overall in the programming world, or maybe ChatGPT is finetuned to do so.

I don't think Jupyter notebooks or like similar REPL interfaces will help too much for my course, at least in the current syllabus. I'm aiming to teach about pointers, memory management etc, the more fundamental parts of how to interact with computers instead of a high level language. Though I would agree that the current UI is suboptimal, some improvements in allowing students to visualize memory layouts and see how their code manipulates memory will help a lot.