Tooldu video demonstration
Original procedural geometry and synthesized quiet 440 Hz tone, created for this project. No stock footage or personal media. Released under CC0-1.0.
Text rendered using DejaVu Sans (Bitstream Vera / DejaVu font licenses); font software is not embedded in the video.
Reproduce with: node scripts/generate-video-sample.mjs (requires native FFmpeg and DejaVu Sans).