[NTG-context] docbook(5) to context conversion

Hi, Are there any publicly available solutions for converting docbook/docbook5 to context? In searching the context wiki, pragma-ade site, ntg-context archives and the web, I encountered three suggestions: * dbcontext - part of dblatex, abandoned ~10 years ago * context style sheets +/- lua - generic xml solutions mentioned in help docs such as "Dealing with XML in Context MkIV" - generic xml solutions also mentioned in context wiki page "XML Lua" * xslt style sheets Any pointers to more specific or developed resources, or even examples, would be appreciated. David