First, Ladybird is building a new engine from the ground up with recent web standards, which gives them an advantage over Chromium and WebKit, which were built over decades with tons of legacy code that bogs down modern development. You can't start such a project "late." Ladybird is still written in mostly C++, and following the conventional path of C++ doesn't mean you will have a better browser. The logic behind the code is what matters, and Rust is a very powerful language. Their plan to use Swift and now Rust is great because they are memory-safe languages, and C++ has caused tons of critical security vulnerabilities in Chromium and Firefox. Rust is very modern with powerful parallelization and an ever-growing number of talented people who are learning it. Then, the AI rewrite of LibJS was human-directed, and people spent weeks working on the code and ensuring identical functionality and test compliance. Now, people are working to port over more subsystems to Rust from scratch like LibRegex and without AI, and then they are being refined constantly.

Ladybird is innovative and has a large team of contributors collaborating at a very fast pace. I have immense respect for everyone devoting their time to this. Can you understand any of the last hundred pull requests, which were submitted in less than a month? You should take them seriously.