If you want to include Bootstrap 5 in a modular way using single-line imports, you can do it like this.

bootstrap-5.3.2-es-module.js

<script type="importmap">
    {
        "imports": {
            "@popperjs/core": "https://cdn.jsdelivr.net/npm/@popperjs/[email protected]/dist/esm/popper.min.js",
            "bootstrap": "https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.esm.min.js"
        }
    }
</script>
<script type="module">
    import { Alert, Button, Carousel, Collapse, Dropdown, Modal, Popover, ScrollSpy, Tab, Toast, Tooltip } from 'bootstrap';
</script>