I have read up on it again, and while it was entirely dysfunctional at the very early stages, it quickly came up to par or beyond, with the LLM especially helped by the huge test suite written in Typescript, different from both Zig and Rust.

However, Jarred still describes a lot of unsafe, and usage of Miri in continuous integration.

Funnily enough, RAII is cited as a major benefit of rewriting from Zig to Rust, while C++ already has RAII. I wonder if C++ and Rust are more suited to larger programs than Zig, unless the architecture in Zig is handled carefully.