Straight skeleton node
Node which would allow making those lines, ideally working also with text curves.
en.wikipedia.org/wiki/Straight_skeleton Add-on for reference:
blenderartists.org/t/straight-skeleton-insets-isoline-slices-and-roof-models-form-polygons/1229799
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There is already at least an attempt to get this feature in with Skeleton Bevel addon that can give something useful for shapes showed in the post, but it's still very limited. Ideally this should work with the complex Text based meshes.
This chiseled effect is now impossible in blender unless you model it by hand, but having a complete implementation of the Straight skeleton algorithm could help getting even more complex ones like custom bevels based on text contours.