Is there a need for a DITA external helper

We’re looking at new ways to present product documentation on the web. We have a huge number of help topics written in DITA. Has anyone considered a Hugo external helper for DITA source? If not, is there any documentation for creating an external helper?

Hugo currently has no support for XML data sources. Your best path forward right now would be to write a separate program to convert the DITA XML into content that Hugo can use.

I’d like to revive this topic. What would it take to write an external helper for LwDITA ? The documentation has this: Supported formats. It’s not clear from this what format the external command has to output - the expected/required processing to “generate the content”. Should the output be standard Hugo-digestible Markdown ? Was this a stupid question ?