I'm currently using a "Curve Circle" node and an "Instance on Points" Node to create a ring shape. However I can't seem to join up the outer vertices. I tried using a "Merge by Distance" node however that causes other problems due to the distance of the vertices.
What I'd like to be able to do is scale the objects at specific vertices so that they are close enough to use the "Merge by Distance" node.
I suspect that I need to make use of Vertex groups but once I've created my selection of vertices into a group I have no idea how to use them in geometry nodes to achieve my goal.