How to register plugins on a vue CE. You likely will have have to modify accordingly to make compatible for other plugins.

useCeVueApp.ts

import * as Vue from 'vue';

import { getCurrentInstance, type Plugin } from 'vue';
import { createEventHook, EventHook } from '@vueuse/core';

interface CeVueApp {
    version: string;
    readonly config: Vue.AppConfig;
    provide(clientKey: string | symbol, value: unknown): CeVueApp;
    onUnmount(fn: EventHook['on']): void;
    use(plugin: Plugin, ...options: unknown[]): CeVueApp;
}

/**
 * This will allow you to register certain vue plugins with your Vue CE
 *
 *   **Only tested with VueQuery and PrimeVue**
 *
 * This should only be called at the root of the CE App.  E.g. YourCeApp.ce.vue
 */
export const useCeVueApp = (configFn: (app: CeVueApp) => void): void => {
    const _vInstance = getCurrentInstance();
    const _unmountEventHook = createEventHook();

    Vue.onBeforeUnmount(() => _unmountEventHook.trigger(void 0));

    if (!_vInstance) {
        throw new Error('useCeVueApp(): could not find vue instance!');
    }

    const fakeVueApp = {
        version: 'FAKE_APP_FOR_CE',

        get config() {
            return _vInstance.appContext.config;
        },

        provide(clientKey: string | symbol, value: unknown) {
            Vue.provide(clientKey, value);
            return fakeVueApp;
        },

        onUnmount(fn: EventHook['on']) {
            _unmountEventHook.on(fn);
        },

        use(plugin: Plugin, ...options: unknown[]) {
            // CeApp is only a subset implementation of a vue app.. but we need to pretend.
            // eslint-disable-next-line @typescript-eslint/no-explicit-any
            const _app: Vue.App = fakeVueApp as any;

            if (plugin.install) {
                plugin.install(_app, ...options);
            }

            if (typeof plugin === 'function') {
                plugin(_app, ...options);
            }

            return fakeVueApp;
        }
    };

    configFn(fakeVueApp);
};

YourApp.ce.vue

<script setup lang="ts">
import { useCeVueApp } from './useCeVueApp';
import PrimeVue from 'primevue/config'

useCeVueApp(app => {
    app.use(PrimeVue);
});
</script>