as an embedded c/c++ developer I tried Rust briefly a few times over the years, don't feel it's the right fit, due to the way it's static build by default the binary size is just too large, plus the library pool is still much small, and there is no equivalent to c++'s STL for speedy coding when I need it.

yes I can trick for size etc, but overall it just did not fit well so far, for the embedded space that is, but, 'system-programming language' has many use cases in embedded field.

But that's just the default, you can tell it to use dynamic linking. What libraries were you missing? I find the rust standard library is better in many ways, and it doesn't have the same performance footguns.

I don't feel Rust has any performance advantage to c and c++ per my own tests.

yes I can dynamically link to stdlib in Rust but I don't think Rust has a versioned dynamic library released for multiple architectures(still many embedded archs are not fully supported in Rust), that leads to problems in the field at depolyment and upgrade phases. Plus the dynamic library after strip is still close to 6MB, I can have a full libstdc++ around 2MB for the embedded system(with musl it is about 1MB), for many low-range embedded systems(there are a _lot_ of them), 6MB is still quite large.

You may want to see https://github.com/johnthagen/min-sized-rust

It's not difficult to get binaries down into the 50KB range. And for embedded applications, less than 10KB is totally possible.