No they didn't. You can see all the commits as this was built iteratively[0]. This project started development on Saturday morning and now it's here.
This is pretty common now, people love to rapidly throw together stuff and show it off a few days later. The only thing different about this from your average Show HN sloppa is that it's living under the NVIDIA Github org, though that also has 700+ repositories[1] in it so they don't appear too discerning about what makes it into the official repo.
My best guess is this was an internal hackathon project they wanted to release publicly.
This is pretty common now, people love to rapidly throw together stuff and show it off a few days later. The only thing different about this from your average Show HN sloppa is that it's living under the NVIDIA Github org, though that also has 700+ repositories[1] in it so they don't appear too discerning about what makes it into the official repo.
My best guess is this was an internal hackathon project they wanted to release publicly.
[0] https://github.com/NVIDIA/NemoClaw/commits/main/?after=241ff...
[1] https://github.com/orgs/NVIDIA/repositories?type=all