The export const some = 1 compiled by vite into ... exports.some = some; ....

How to make it to use native ES modules?

I tried target: "esnext", esModule: true, format: 'es' – none works.

The config (I’m using script instead of config because I need it to run for list of files).

import path from 'path'
import { build } from 'vite'

['lib.ts']
  .map(name => [name, path.resolve(__dirname, name)])
  .forEach(async ([name, entry]) => {
    // console.log(name, entry)
    await build({
      configFile: false,
      build: {
        target: "esnext",
        emptyOutDir: false,
        minify: false,
        lib: {
          entry,
          name
        },
        rollupOptions: {
          external: ['base'],
          output: {
            esModule: true,
            format: 'es',
            entryFileNames: '[name].mjs',
            dir: 'releases/tmp'
          }
        }
      }
    })
  })