Where do I host an optimizer?

Hmm… To put it simply, I guess it’s because “GitHub is already there for that purpose.” On Hugging Face, Spaces is where you’d typically host code (for execution), but Spaces is mainly intended for demos. Hugging Face Hub is like GitHub for files that are too large, such as AI model weights and massive datasets. Presumably, Hugging Face assumes that users will use it alongside GitHub; they likely expect that code and libraries—including those developed by Hugging Face itself—will be hosted on GitHub.