Nightwatch configuration headless without selenium

nightwatch.conf.js

const SCREENSHOT_PATH = 'test/integration/screenshots/';
const BINPATH = 'test/integration/libs';
const TIME_OUT = process.env.NODE_ENV !== 'testing' ? 2000 : false;
const CHROME = process.env.NODE_ENV !== 'testing' ? '/Applications/Google Chrome.app/Contents/MacOS/Google Chrome' : '/usr/bin/google-chrome';

module.exports = {
    src_folders: ['test/integration/specs'],
    output_folder: 'test/integration/reports',
    selenium: {
        start_process: false,
        port: 4444,
        cli_args: {
            'webdriver.chrome.driver': `${BINPATH}/chromedriver/chromedriver`,
        },
    },
    test_settings: {
        default: {
            launch_url: 'localhost:3000',
            selenium_port: '9515',
            selenium_host: 'localhost',
            silent: true,
            screenshots: {
                enabled: true,
                path: SCREENSHOT_PATH,
                on_failure: true,
            },
            globals: {
                Timeout: TIME_OUT,
                urls: {
                    Home: 'http://localhost:3000',
                    RubyConf: 'http://localhost:3000/ruby-conf',
                },
                input: {
                    simpleName: 'Geisy',
                    completeName: 'Geiseany Domiciano',
                    specialCharName: 'João José da Silva',
                    numbers: '123456',
                }
            },

            desiredCapabilities: {
                browserName: 'chrome',
                acceptSslCerts: true,
                chromeOptions: {
                    args: [
                        '--headless',
                        '--no-sandbox',
                        '--window-size=360, 640',
                    ],
                    binary: CHROME,
                },
            },
        },
        chrome: {
            desiredCapabilities: {
                browserName: 'chrome',
            },
        },
    },
};