You really want to be using C++ and Rust as little as possible - ideally only for high-performance code. The rest of your application should be developed using a RAD language like C# or Kotlin. Interoperability between C# and C++ right now is really great with first-party build tooling support from MS. Rust, as far as I know, doesn't have a great interoperability story with any other language except for, ironically, C++ based on this[0].

[0]https://www.hobofan.com/rust-interop/