The accompanying PDF/UA file generates the website seen in the talk by Ross Moore at TUG'23.
This pdf contains;
This PDF itself is fully Tagged and PDF/UA-compliant. Furthermore, it has sufficient tagging to produce an HTML5-compliant website which itself satisfies most ARIA/WCAG recommendations, as well.
Thus this PDF could well be of interest to anyone who is serious about generating PDFs which contain extra information that helps meet established practices for supporting Accessibility in (web-based) electronic documents.