Working vanilla JS code example

Is this project still maintained? I tried many examples and none of them worked. 

In docs it's stated to use 
```
<script src="https://code.haiku.ai/scripts/core/HaikuCore.VERSION.js"></script>
```

but it doesn't seem to work. Can you provide codepen to working example, where HaikuCore is imported from CDN (no React/Vue project)? 

Thanks!