@uigstudio/strapi-plugin-custom-fields/admin/src/components/Initializer/index.js

This plugin add custom fields

/**
 *
 * Initializer
 *
 */

import {useEffect, useRef} from 'react';
import PropTypes from 'prop-types';
import pluginId from '../../pluginId';

const Initializer = ({setPlugin}) => {
    const ref = useRef();
    ref.current = setPlugin;

    useEffect(() => {
        ref.current(pluginId);
    }, []);

    return null;
};

Initializer.propTypes = {
    setPlugin: PropTypes.func.isRequired,
};

export default Initializer;