Thanks for posting what you are doing. Yes it will be interesting to see the results. Some year ago I also made a node generator in Nurbs. It worked not perfactly, there is still a component.
Perphas it could be useful.
Dendro offers many possibilities. Here some other way to make sort of smooth transition using curve filet. Sandbox topology is needed.
ExoWireframe_Node_Dendro_LD.gh (47.5 KB)
Some more regular way
ExoWireframe_Node_Dendro_LD2.gh (49.1 KB)