addExternalBabelPlugin not working for customize-cra (react app rewired) alternative solution

README.md

this wasn't working:

const { override, addExternalBabelPlugin } = require('customize-cra');

module.exports = override(addExternalBabelPlugin('babel-plugin-react-engine'))

this instead worked:

const { override, getBabelLoader } = require('customize-cra');

const prependBabelPlugin = (plugin) => (config) => {
    getBabelLoader(config).options.plugins.unshift(plugin);
    return config;
};

module.exports = override(prependBabelPlugin('babel-plugin-react-engine'));

thanks to: arackaf/customize-cra#240