Dayawlongon Archipelago - How can we expand this setting?

Radiant Citadel fans: Have any of you expanded on the Dayawlongon setting @thedovetailor.bsky.social created for Journeys through the Radiant Citadel?:
www.thepiazza.org.uk/bb/viewtopic...

How did you expand beyond the lands mentioned in Between Tangled Roots?

#Dayawlongon #RadiantCitadel