vue-formulario/build/rollup.config.js

import commonjs from '@rollup/plugin-commonjs' // Convert CommonJS modules to ES6
import buble from '@rollup/plugin-buble' // Transpile/polyfill with reasonable browser support
import autoExternal from 'rollup-plugin-auto-external'
import vue from 'rollup-plugin-vue' // Handle .vue SFC files
import { terser } from 'rollup-plugin-terser'

export default {
    input: 'src/Formulario.js', // Path relative to package.json
    output: [
        {
            name: 'Formulario',
            exports: 'default',
            globals: {
                'is-plain-object': 'isPlainObject',
                'nanoid/non-secure': 'nanoid',
                'is-url': 'isUrl',
            },
            sourcemap: false
        }
    ],
    external: ['nanoid/non-secure'],
    plugins: [
        commonjs(),
        autoExternal(),
        vue({
            css: true, // Dynamically inject css as a <style> tag
            compileTemplate: true // Explicitly convert template to render function
        }),
        buble({
            objectAssign: 'Object.assign'
        }), // Transpile to ES5,
        terser()
    ]
}