config-overrides.js

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

module.exports = override(
    useBabelRc(),
    addBabelPlugin("@babel/plugin-proposal-nullish-coalescing-operator"),
    (config) => {
        if (!config.resolve) {
            config.resolve = {};
        }

        if (!config.resolve.fallback) {
            config.resolve.fallback = {};
        }

        Object.assign(config.resolve.fallback, {
            assert: require.resolve('assert'),
            buffer: require.resolve('buffer'),
            console: require.resolve('console-browserify'),
            constants: require.resolve('constants-browserify'),
            crypto: require.resolve('crypto-browserify'),
            domain: require.resolve('domain-browser'),
            events: require.resolve('events'),
            http: require.resolve('stream-http'),
            https: require.resolve('https-browserify'),
            os: require.resolve('os-browserify/browser'),
            path: require.resolve('path-browserify'),
            punycode: require.resolve('punycode'),
            process: require.resolve('process/browser'),
            querystring: require.resolve('querystring-es3'),
            stream: require.resolve('stream-browserify'),
            string_decoder: require.resolve('string_decoder'),
            sys: require.resolve('util'),
            timers: require.resolve('timers-browserify'),
            tty: require.resolve('tty-browserify'),
            url: require.resolve('url'),
            util: require.resolve('util'),
            vm: require.resolve('vm-browserify'),
            zlib: require.resolve('browserify-zlib'),
            fs: false
        });

        return config;
    }
);