The code was obviously written using LLMs and I don't say this because the code looks like it's been LLM-generated but because of the fact that no sane person would have been able to write such complex piece of software in the pre-AI era. To me personally it shows how things dramatically shifted in software, and how domain expertise along with the AI became not 10x but 100x multiplier.

I see no reason why would anyone even bother checking this out, while there a trusted, battle scared, and non vibe-coded alternatives such as postgres, duckdb,boltdb,SQLite.

Sorry mate.