How to display vertex indices for geometry nodes?

If I select Edit-Preferences - Dev Extra, in edit mode I can enable vertex index overlay to see vertex indices. For Index geometry Node to be useful, I want to see vertex index in geometry that results from geometry nodes as well. The only way I found is to duplicate the model and apply the geom node modifier which is convoluted (less convoluted than trying to guess the vertex position in viewport so I can lookup the index in the sheet to the left).

I also tried using String to Curve so I can have debug printing as geometry, but it wants more constant value (at least from my understanding of rhombus vs circles)