I would like to fake the "mirror" modifier in Geometry Node (Blender 3.0) except that I only want to keep the mirrored object (to parent it to some bones), but I can't find how to do. All transforms in GeometryNodes seem to be in the local space, while I need to change the global position of the vertices.
For now, I created a first curve object called "WingModel" (on the left) that I can freely edit (I want to keep non-destructive editing). Then, WingLeft is just a Geometry Node taking the geometry of the WingModel using Object Info, that I position as I like. Now, I want to design WingRight to be the mirror of the WingLeft, ideally using Geometry Nodes.