Einstein in Your Pocket — Whiteboard Explainer v2 (Lemo-Opuscar) · LemoLab × Claude Opus 5.5
All pictures are drawn by code (demo/engine/wb.js). No generated images, no third-party artwork.
Lettering (on the board)
EMS Tech — SIL Open Font License 1.1. Single-line font by Sheldon B. Michaels, derived from
"Architects Daughter" by Kimberly Geswein; SVG conversion by Windell H. Oskay (Evil Mad Scientist).
Obtained from the npm package "hersheytext" (MIT, James T / techninja). License text: fonts/EMSTech.svg <metadata>.
EMS Readability / EMS Felix (same terms) are included but unused.
Subtitles
Architects Daughter — Kimberly Geswein, SIL Open Font License 1.1 (fonts/OFL-ArchitectsDaughter.txt).
Voice
Kokoro-82M (Apache 2.0) via kokoro-onnx, voice bm_george, lang en-gb.
Music samples (CC0 1.0)
VS Chamber Orchestra: Community Edition (Versilian Studios / Sam Gossner),
Versilian Community Sample Library (Versilian Studios), FreePats project (freepats.zenvoid.org).
Instruments used: marimba, glockenspiel, vibraphone, vibraphone_bowed, harp, tubular_bells, glass,
cellos_pizz, contrabass_pizz, violins_pizz, violins, violas, contrabass, horn, tuba_stac, bassoon_stac,
clarinet, clarinet_stac, timpani, crash, sus_cymbal, gran_cassa, snare2, woodblock, claps, shaker.
Score, foley and sound design
Original, synthesized in demo/music.py and demo/mix.py.