Ha, I just tried the same trick with Rust:

  //$HOME/.cargo/bin/rustc "$0" && ${0%.rs} "$@" ; exit
  
  use std::env;
  
  fn main() {
      println!("hello, world!");
      for arg in env::args() {
          println!("arg: {arg}");
      }
  }

Total hack, and it litters ./ with the generated executable. But cute.