Black fill = 1st name (Vivaldi, solid engrave). Blue stroke = 2nd name (Calibri, line engrave). Red = cut: fused outline (offset around 1st-name shape ∪ axis-aligned rectangle for 2nd) + hole.
Fonts: ../VIVALDII.TTF, ../calibri.ttf — serve locally.
Run: python -m http.server 9000 → http://localhost:9000/templates/dual-name-keytag.html