The point isn't about writing it but seeing difference and making probably suboptimal choice.

I mentioned in other comment that I reviewed it extensively. It's not a big project so outside of a few spicy bits it's mostly a web app.

I'd say that saying "not putting thought into it" is unfair. I didn't push the button and YOLO.

I did research about the tradeoffs and consequences. Snippets of Rust code vs Rails are the real thing and testability of Rust app is something I spent 2 months on.

As LLM enthusiast would say: context matters ;)