salix/@salix/app/src/bootstrap.js

import {ng} from 'vendor';
import {NAME as SALIX} from './module';

export const bootstrap = () => {
    const selector = 'selector'
    
    let _script = document.currentScript || (() => {
        let scripts = document.getElementsByTagName('script');
        return scripts[scripts.length - 1];
    })();

    let _element = _script && document.querySelector(_script.getAttribute(selector));
    if (!_element) {
        throw new Error("element is not defined");
    }
    ng.bootstrap(_element, [SALIX]);

};