OpenChippy: reusable circuits and 3D layout

Silent recording of the real OpenChippy desktop application. The edit joins
separate captures and omits project-opening dialogs and pauses. It does not
show either complete project being drawn from an empty canvas.

0:00–0:13 — A prepared XOR design contains four reusable NAND2 blocks. Click
the last NAND output terminal, then click the output probe to complete the
circuit. Move one NAND block; its wires stay connected. Run DRC. The application
reports “DRC passed” with no basic connectivity issues.

0:13–0:16.6 — Cut to a larger, prepared four-bit ripple-carry adder. Each of
its four full-adder blocks contains nine reusable NAND2 blocks. The design
contains 36 NAND gates and 144 MOS transistors. Its schematic connectivity
check has also passed.

0:16.6–0:18.4 — Open the 3D view. The real physical-generation progress panel
runs at four times its recorded speed. A permanent label during this segment
states “Layout generation · 4× playback” and “Actual wait: about 7 seconds in
this recorded run.” The uncropped source recording shows the progress panel
from approximately 4.0 to 11.3 seconds, about 7.3 seconds elapsed. This is a
single illustrative run, not a performance benchmark or a promised build time.

0:18.4–0:35.4 — Cut past camera setup to the completed physical layout at normal
playback speed. Colored geometry represents process layers and interconnects.
Rotate the layout with right-drag, inspect routing and stacked vias, switch to
the top view, then return to the isometric view. The sidebar reports 144 MOS
transistors and five routing metals. The native generator and physical checks
are experimental; the schematic DRC result does not establish foundry signoff.

Captured October 19, 2026, on Apple Silicon macOS with an Apple M6 CPU.
Local OpenChippy release bundle reports version 0.1.0-alpha.1, Physical IR v49,
using the built-in OpenChippy EDU CMOS technology. Recording: 1600 × 900.
Project changes and camera-setup pauses are edited; only the physical-generation
segment is accelerated. There is no audio track.