fn main() -> Result<(), Box> { use std::process::Command; println!("cargo:rerun-if-changed=./styles/input.css"); match Command::new("bunx") .args([ "@tailwindcss/cli", "-i", "./styles/input.css", "-o", "./assets/tailwind.css", ]) .status() { Ok(status) if !status.success() => { println!("cargo:warning=tailwind build exited with {status}, skipping CSS generation"); } Err(e) => { println!("cargo:warning=bunx not found ({e}), skipping tailwind CSS generation"); } Ok(_) => {} } Ok(()) }