Reference for running rust on consoles

main.c

// rust.h
extern void rust_main();

// main.c
#import "rust.h"

void main()
{
    rust_main();
}

main.rs

use bevy::prelude::*;

fn main() {
    App::new()
      .add_system(hello_world_system)
      .run();
}

fn hello_world_system() {
    println!("hello world");
}

#[no_mangle]
extern "C" fn rust_main() {
    main();
}