Blog post author here. It loads pretty fast for me, so I guess the problem isn&#x27;t bandwidth. If you see any errors in the console (right click -&gt; Inspect -&gt; Console), please let me know.<p>As for business cases, I&#x27;m personally working on a couple of simulator front-ends in neuroscience and materials science that can be made more easily available by distributing them in the browser. If not the full version, a demo could be made to show the features. Also, I find it easier and more fun to make interactive illustrations for education in Qt&#x2F;QML than pure JavaScript.