Firstly, I note that I am not a package developer, so I don’t pretend to know how complex integrating accessibility into packages is. With that in mind, I can’t find any information in the accessibility documentation on how the core features interact with packages, with the main feature I am thinking of being alt text. Thus, I am unclear on if there is any risk with using unmaintained packages and having them fail to meet PDF UA/1 compliance. I know some Typst packages come with minimum Typst version information, but so far, only a small number of the ones I’ve sampled have 0.14 as the minimum version.
If someone could clarify how accessibility features interact with packages, I would appreciate it.