<script src="https://cdn.gpteng.co/gptengineer.js" type="module"></script>

https://github.com/AntonOsika/gpt-engineer

I believe I have identified the culprit.

So they just prompted the site with lovable.dev

For another open source alternative, shout out to https://www.opensignlabs.com/ as well.

I had some issue loading the page as well. It seems like it doesn't like my adblockers or something

Likewise, blank page. Mobile Firefox + ad blocker.

+1 for docuseal, so good.

also shows just a blank page for me. osx/safari