Espruino plugin for Rollup module bundler

I'm trying to use the new rollup-plugin-espruino-modules (the old one is not API compatible with Rollup anymore).

import { espruinoModules } from 'rollup-plugin-espruino-modules'
import commonjs from 'rollup-plugin-commonjs'
import { terser as terserPlugin } from "rollup-plugin-terser";

export default {
  input: 'src/main.js',
  output: {
    file: 'dist/bundle.js',
    format: 'es'
  },
  plugins: [
    commonjs(),
    terserPlugin({
      compress: true,
      mangle: true
    }),
    espruinoModules({
      board: 'ESP8266_4MB'
    }),
  ],
}

Running rollup fails with this:

Error: ENOENT: no such file or directory, open 'C:\dev-esp\espruino-cc1101-q7rf\modules\.board_ESP8266_4MB.json'

Mod: okay, never mind, I've figured out. I needed to create the modules directory by hand, otherwise it fails. It's probably a bug.

Am I correct that this new module cannot upload the code to the board after bundling? I've seen the older plugin had the port/baud/save options for this, but not this.

Also is it okay to run the Espruino plugin after the Terser like this?