vue-cli-plugin-tailwind-rollup-esm-component/helpers/postcss-helpers.js

Vue CLI 3.0 plugin (with Tailwind, PurgeCSS and Rollup) to use as a component starter

module.exports = function(api) {
  return {
    getPostCSSConfig() {
      const isExternalConfig = api.generator.originalPkg.postcss ? false : true
      // PostCSS config is in package.json. Need to extract it and at the end delete postcss config from package.json
      if (!isExternalConfig) {
        delete api.generator.pkg.postcss
      }
    }
  }
}