[clarus]

The code is translated automatically with coq-of-rust! When issues are found in the translation they can be fixed once in the coq-of-rust tool, and all the translations are updated.

[weinzierl]

Ok, what I think I do not understand is what they mean by "tedious and error prone"? Is it tedious to write the automated translation (aka the coq-of-rust tool in this case) or does the translation of a concrete piece of code (e.g. the core crate) still involve manual work?

[clarus]

The "tedious and error prone" code was what we were doing before, when the translation of the standard library was not yet working automatically with coq-of-rust. Now, this is automatic. Maybe the explanations on the blog post were not clear.