Hi,
I just like to announce that I built a dokka-extension at https://github.com/cotechde/dokka-hugo-extension to generate Javadoc / Kotlin that integrates well with Hugo.
You can see the auto-generated API reference on our website at https://www.cotech.de/reference/hw-security/de.cotech.hw/ (using the Academic theme)
Have fun using it
Dominik