> It was filled with horrible unsafe C++
Are you saying their code was horrible and unsafe, or just that its a byproduct of using C++. They've been rewriting parts in rust: https://github.com/LadybirdBrowser/ladybird/blob/8f0a1b19114....
> They also re-implement everything whether it is needed or not.
No they don't. SerenityOS did, and that was the goal of the project. But Ladybird has plenty of third party libraries.
> Are you saying their code was horrible and unsafe, or just that its a byproduct of using C++.
Yes.
It's both terrible because it's C++, and it's terrible because they're not following the modern C++ safe coding practices.
> They've been rewriting parts in rust: https://github.com/LadybirdBrowser/ladybird/blob/8f0a1b19114....
And it's not going to amount to anything major. Rewriting in Rust properly requires architecting things from the beginning.
> No they don't.
For a long time, their policy had been "no third-party code". Eventually it became untenable, so they started using third-party libraries. But they still ended up reinventing the wheel at least several times.