Bun was never good. It's been owned by anthropic and merging unreviewed slop for a long time, and even without that, the people behind merging this 1m LOC AI port are the same people that have always been behind the project.
For the record, the AI port also benefits from exactly none of rust's safety features because it is a transliteration, not a proper port. From what I've seen, claude just brute forced things like unsafe pointer-to-ref casts everywhere which defeats the purpose entirely. It likely also introduced undefined behavior via things like aliased &mut refs which are not undefined in zig.
Code:
$ rg 'unsafe \{' --stats
...
10480 matches