> It should be noted that, particularly for rust, it's a silly policy as rust does not support dynamic linking of rust libraries.

Almost. You can write dynamic libraries in Rust (using the cdylib target type), but their external interface will be limited to the C ABI. For all intents and purposes, they'll be 'C shared libraries' that just happen to be written in Rust. (You can also create C headers for the exported C API using cbindgen.)