is talking about redeclaration of the variable X but there is no X in the german example code?!
there is one in the english example.
i would like to checkout the source and contribute those small changes everywhere i find minor errors like this.

how can i do this?

fn main() {
    let hello_world = "Hello world";
    println!("{}", hello_world);
    
    let hello_world = "Hello playground";
    println!("{}", hello_world);
}

(Playground)

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