Do you suspect a confident hallucination? This is a flight data recorder for AI. It helps you reproduce everything the model just did.
You can read the installer first:
curl -fsSL https://npvg.org | less
Then run it:
curl -fsSL https://npvg.org | bash
This address serves a page to a browser and the installer to a terminal. The first commands lets you read the installer and the second one runs it.
What it installs is a reproducible workshop pinned with Nix. Take a reading. Change one thing. Take the reading again. The difference is the receipt.