# Third-party notices and model credits

- d3 7.9.0: unmodified pinned distribution, ISC. Preserve [root notice](assets/vendor/d3.LICENSE.txt) and [all bundle notices](assets/vendor/d3.BUNDLE-NOTICES.txt). Exact upstream release-lock versions and bundle hash: [dependency record](assets/vendor/d3-dependencies.json). Includes d3 modules, InternMap 2.0.3, Delaunator 5.0.1 and robust-predicates 3.0.2 (Unlicense); quickselect is the credited adaptation in d3-array 3.2.4, with its original ISC permission included. This is the release's upstream lock, not freshly resolved dependency ranges.
- IBM Plex Sans in the old lab is requested from Google Fonts, weights 400/500/600: [SIL OFL 1.1](assets/vendor/IBM-Plex-Sans-OFL.txt). No font binary is bundled or pinned. App uses system fonts; SVG font references embed no font.
- Native educational memory equations: [Strukov et al. 2008](https://www.nature.com/articles/nature06932), [2009 correction](https://www.nature.com/articles/nature08166), [Biolek et al. 2009](https://www.radioeng.cz/fulltexts/2009/09_02_210_214.pdf). Papers/figures are not redistributed. Native mechanics adapt the Inertance demo at cwas 3e58764; native implicit network integration differs from the separate demo solver.
- Converter examples use established topologies, with teaching layout references to DTU 34652 Section 2 pp. 2/9/15, Section 3 pp. 4/9/23/29 and full-bridge-buck slide 3. No course PDFs or slides are bundled. Exact third-party figure/author clearance is not established; these layouts are excluded from the additional CC content grant. Inertance is independent and not endorsed by DTU.
- Umami, PostHog and FormSubmit are external services, not vendored SDK code. Their marks and service software are not claimed as Inertance property.


## Differential flywheel design — 28 October 2026

The native two-winding mechanism follows Lucas Wybrandt's Claude-assisted
differential-transformer design, private source revision
4090b5a29514363bd387dfe5b431ddec40b013b8. Integrated and reviewed with the existing
native electrical solver; its AGPL-3.0-or-later source notices are retained.
The drawing and gear tooth contact are illustrative, not physical validation.