// rollup.config.js
import shebang from 'rollup-plugin-add-shebang';

export default {
  ...
  plugins: [
    shebang({
      // A single or an array of filename patterns. Defaults to ['**/cli.js', '**/bin.js'].
      include: 'out/cli.js'
      // you could also 'exclude' here
      // or specify a special shebang (or a function returning one) using the 'shebang' option
    }),
  ],
  ...
};