Comment by wilsonzlin

1 day ago

Thanks for the feedback. There were some build errors which have now been resolved; the CI test that was failing was not a standard check CI, and it's now been updated. Let me know if you have any further issues.

> On twitter their CEO explicitly stated that it uses a "custom js vm" which seemed particularly misleading / untrue to me.

The JS engine used a custom JS VM being developed in vendor/ecma-rs as part of the browser, which is a copy of my personal JS parser project vendored to make it easier to commit to.

I agree that for some core engine components, it should not be simply pulling in dependencies. I've begun the process of removing many of these and co-developing them within the repo alongside the browser. A reasonable goal for "from scratch" may be "if other major browsers use a dependency, it's fine to do so too". For example: OpenSSL, libpng, HarfBuzz, Skia. The current project can be moved more towards this direction, although I think using libraries for general infra that most software use (e.g. windowing) can be compatible with that goal.

I'd push back on the idea that all the agents did was wire up dependencies — the JS VM, DOM, paint systems, chrome, text pipeline, are all being developed as part of this project, and there are real complex systems being engineered towards the goal of a browser engine, even if not there yet.

When you say "have now been resolved" - did the AI agent resolve it autonomously, did you direct it to, or did a human do it?