Is it normal for a journalist to ask what libraries I used?

A journalist digging for details before writing a story is what one expects. The real question is how reputable is this journalist and outlet? What's the risk here? That they'll quit their job and go copy your thing instead? If answering that question puts your company at risk, then the issue may be the level of value you provide on top of whatever tools/frameworks you used.

Looks like the text was written by an llm. Also unless your product is open source, you don’t need to say anything that you don’t feel comfortable sharing.

On another note, can you share the url of your product?

Hey HN,

I recently launched something I had been working on. And I have setup an auto email asking for user feedback. And I relieved this email.

I find this inquiry bit strange. So I ask you, is this normal?

Sounds as if the journalist wants to write a few paragraphs about how you did it. Give the story a bit of depth.