6 Kilometres (6 公里) — Transit Map (Lemo-Opuscar) · LemoLab × Claude Opus 5.5

Unofficial fan film, not affiliated with Shanghai Shentong Metro or Transport for London. No operator logo, branded
line bullet or official map is used: the schematic, its geometry and every mark are our own drawing in code.
Line colours and station names are public facts (see FACTS.md).

IMAGES, FOOTAGE, MODELS
- None. The map, paper, table, tunnel, counter and station plate are drawn in code (net.js, film.js, gl.js,
  timeline.js). No photographs, no scans, no AI-generated images, no 3D models.

FONTS (SIL Open Font License 1.1, licence texts in fonts/; not in git, build.sh downloads them from github.com/google/fonts)
- Inter (variable, Inter[opsz,wght].ttf) — The Inter Project Authors (Latin text, figures, counter drums)
  fonts/OFL-Inter.txt
- Noto Sans SC (variable, NotoSansSC[wght].ttf) — Google / Adobe (Chinese text), subset by tools/subset.py to the
  characters the film prints (fonts/NotoSansSC-sub.ttf)
  fonts/OFL-NotoSansSC.txt

MUSIC & SOUND
- Original score and sound design, written for this film in audio.py: synthesis in numpy (tunnel rumble, wheel and
  rail clacks, horn, risers, whistle, water bed, felt-tip glide, counter ticks) through the library's core/audio/sfx.py,
  plus sampled instruments played through the library's core/audio/sampler.py:
  bass drum, cellos (sustain, spiccato), clarinet staccato, contrabass (sustain, pizzicato), crash cymbal, flute
  staccato, glass, glockenspiel, gran cassa, harp, hi-hat, horn (sustain, staccato), marimba, oboe staccato, snare
  (two kits), suspended cymbal, timpani, trombone, trumpet staccato, tubular bells, vibraphone (soft, hard, bowed),
  violas, violins (sustain, pizzicato, spiccato), woodblock, xylophone.
- Samples (CC0): FreePats project (freepats.zenvoid.org), VS Chamber Orchestra: Community Edition (Versilian
  Studios), Versilian Community Sample Library (Versilian Studios). Downloaded with sh tools/fetch.sh instruments
  freepats | vsco2ce | vcsl.

FACTS
- See FACTS.md: The Paper (澎湃新闻) and the Shanghai Metro official WeChat account, Xinhua, Xinmin Weekly, Jiefang
  Daily, Beijing Youth Daily, London Transport Museum, Transport for London. Every figure on screen is quoted there.
