At dawn, after a night of repositioning stones and reworking bevels, she sent the STL to the printer. The first layers appeared with that satisfying metallic hiss, each pass laying down what the software had promised. When the piece emerged, cold and slightly sticky with resin, Mara held it to the light. The triangle hid like a secret, and the ring bore the ghost of every hand that had ever touched the files inside RhinoGOLD-5.7.0.6.zip.