New Node, Splines: Dead end / intersection finder

I have a Question about Splines, is it possible to write a Generator that finds all the Dead-Ends of a Pathfinding-Spline and marks them with a green Transform-Point? Today I have tried to do that, mixing Code from the Spline-Scatter and Weld Close Generators, and I had some Success, but it turned out that, of Course, several Crossroads and sharp Curves in my existing Paths are also Points where some Line ends. But I am not trying to find Crossroads and sharp Curves, I would like to only find actual Dead-Ends.