primevue-mirror/apps/volt/plugins/primevue.js

import PrimeVue from 'primevue/config';
import StyleClass from 'primevue/styleclass';

export default defineNuxtPlugin((nuxtApp) => {
    nuxtApp.vueApp.use(PrimeVue, {
        unstyled: true
    });
    nuxtApp.vueApp.directive('styleclass', StyleClass);
});