Quite a lot of projects are trying this "rewrite to a new language using LLM", both internally, or externally (like is here). For me, they confirm some (slightly controversial) takes.

1. human code reviews are dead. We don't yet know what's next. Two reasons they are dead: too much code to review, and code reviewing sucks (who wants to spend their days reviewing code?) 2. Not knowing how to review LLM code is a big barrier to adoption, but bigger regression test suites (testability/evals) is almost certainly the direction. 3. There are a lot of projects that haven't moved to more modern infra because it was too hard. Now it's much easier. Sure stuff will go wrong. Sure it all has to be tested. What's new here? 4. Programming languages for LLMs are coming. 5. Projects that don't allow AI coding will be forced to come around or fade.

Separately, bit off topic:

New projects will often have LLMs built in, so non-determinism will be inherent in the project. No amount of code review will be able to eliminate that.