toby/resources/js/app.js

import {createApp, h} from 'vue';
import {createInertiaApp} from '@inertiajs/inertia-vue3';
import {InertiaProgress} from '@inertiajs/progress';

createInertiaApp({
    resolve: name => require(`./Pages/${name}`),
    setup({el, App, props, plugin}) {
        createApp({render: () => h(App, props)})
            .use(plugin)
            .mount(el);
    },
});

InertiaProgress.init();