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<script src="https://flems.io/flems.html" type="text/javascript" charset="utf-8"></script>
<script>
const flems = Flems(document.body, {
    files: [{
        name: 'app.js',
        content: 'm.render(document.body, m("h1", "Hello world"))'
    },{
        name: 'aa.scss',
        content: '*{color:red};'
    }],
    links: [{
        name: 'mithril',
        type: 'script',
        url: 'https://unpkg.com/mithril'
    }]
})
</script>