> You obviously can't run unix_chkpwd against a local account without root.

Wrong. At least check before you say something is obvious.

> No, it's very simple.

Even more wrong: https://github.com/linux-pam/linux-pam/issues/778#issuecomme...

> feels like arguing with an LLM

I could say the same about you, repeatedly and confidently asserting falsehoods.