revite/src/main.tsx

import { registerSW } from 'virtual:pwa-register';
import { internalEmit } from './lib/eventEmitter';

export const updateSW = registerSW({
    onNeedRefresh() {
        internalEmit('PWA', 'update');
    },
    onOfflineReady() {
        console.info('Ready to work offline.');
        // show a ready to work offline to user
    },
})

import "./styles/index.scss";
import { render } from "preact";
import { App } from "./pages/app";

// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
render(<App />, document.getElementById("app")!);