Comment by warkdarrior

> I would blame the adoption of containerization for the lack of interest in XML standards, but by the time containerization happened, XML had been all but abandoned.

Not sure how that is true. XML is a specification for a data format, but you still need to define the schema (i.e., elements, attributes, their meaning). It's not like XML for web pages (XHTML?) could also serve as XML for Linux container descriptions or as XML for Android app manifests.