npm install boot-cell \
    iterable-observer \
    marked turndown turndown-plugin-gfm markdown-ime \
    @nuintun/qrcode

<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/dialog-polyfill@0.5.4/dist/dialog-polyfill.css">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.5.3/dist/css/bootstrap.min.css">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bs-stepper@1.7.0/dist/css/bs-stepper.min.css">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.2.1/font/bootstrap-icons.css">
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<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/github-markdown-css@4.0.0/github-markdown.min.css">
<script crossorigin src="https://polyfill.app/api/polyfill?features=es.array.flat,es.object.from-entries,regenerator-runtime,intersection-observer,resize-observer"></script>
<script src="https://cdn.jsdelivr.net/npm/dialog-polyfill@0.5.4/dist/dialog-polyfill.js"></script>
<script src="https://cdn.jsdelivr.net/npm/share-api-polyfill@1.0.20/dist/share-min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/@webcomponents/webcomponentsjs@2.5.0/custom-elements-es5-adapter.js"></script>
<script src="https://cdn.jsdelivr.net/npm/@webcomponents/webcomponentsjs@2.5.0/webcomponents-bundle.js"></script>