Dependencies are dependencies in rust as in C++. I found it's extremely rare that homegrown library that have similar functionality to (used) open-source librar

Dependencies are dependencies in rust as in C++. I found it's extremely rare that homegrown library that have similar functionality to (used) open-source libraries are better from a security stand-point. At least in Rust a large part of the security issues that would be VERY time consuming to audit at scale through your dependency tree (whether internal or public) are covered by the compiler/borrow checker/type-system. In that sense I would take on an larger amount of dependency in Rust than I would in C++ while sleeping better.