aria-invalid="true" with aria-describedby

As part of Django’s accessibility team, I’ve been doing a lot of research into specific patterns. Today – aria-required="true" combined with aria-describedby for error messages! Is it good? Is it redundant? What do authorative sources say?

2022 web conferences

Here is a small list of conferences I put together for 2022, as I was looking for speaking opportunities, with a particular focus on Europe and America. Hope this helps!