The dev has 30 years of experience with c++ and a lot of it was on browsers.
He tried to incorporate rust with the help of “JT”, one of the original rust designers/devs and according to Andreas it didn’t work that well due to the web being too objet oriented or something like that. They both worked together (well, mostly “JT”) to create a new safe programming language called “yakt” that transpile to c++, but the project is currently pretty much dead because nobody is really working on it anymore.