just to clarify it's not PyTorch, it's the library for this Lightning AI company?

Oh shit I had assumed PyTorch Lightning was affiliated with PyTorch. Not a great name for an unaffiliated third party thing.

It's standard naming if you write a plugin for something to do `{main-package}-{sub-package}` as the naming convention. `django-rest-framework` isn't an official Django project, but it's part of the Django ecosystem. This looks like "running PyTorch with our added stuff to make your life easier" so this naming convention isn't out of the norm.

Yes

Yep. Lighting is a blatant, shameless rip off of Jeremy Howard's FastAI library BTW.