rollup.config.js

import { nodeResolve } from '@rollup/plugin-node-resolve';
import commonjs from '@rollup/plugin-commonjs';
import terser from '@rollup/plugin-terser';
import json from "@rollup/plugin-json";

export default {
  input: 'index.js',
  output: {
    dir: './dist',
    format: 'cjs',
  },
  plugins: [
    json(),
    nodeResolve({ preferBuiltins: true }),
    commonjs(),
    terser()
  ],
}