I have one at work that does okay. If your project is based on cmake I can create the package very quickly, though most projects still don't create a cmake configuration file. If your project isn't cmake - well at best a day, and often I will spend weeks fighting your half baked build system that doesn't understand the common things I want to do. (in practice autotools projects have the options to cross compile but it doesn't actually work...)

CMake + vcpkg [0] does cross compilation, I've used it mynself. It's pretty good!

[0] https://stackoverflow.com/questions/58777810/how-to-integrat...

Rust/Go seem to manage this just without issues.