When I execute the code to execute the LLama 3.1 nemo example I'm getting an error:

fatal: not a valid object name: HEAD:large_language_model_pretraining/nemo/

Looks like this was changed relatively recently.
46a0072

I changed it back to the original form (see below) and it's working for me now. I'll raise a PR.

packager=run.GitArchivePackager(),