free-human-design (Free Human Design API)
Copyright (c) 2026 Adam Blvck / Blvck Studios
Licensed under the MIT License (see LICENSE).

This product includes and/or depends on the following third-party software:

- astronomia (https://github.com/commenthol/astronomia) — MIT License.
  Used as the default, pure-JavaScript ephemeris backend (VSOP87 planetary
  theory, lunar theory, sidereal time, nutation). Bundles its own data; no
  external ephemeris files are required.

- luxon (https://github.com/moment/luxon) — MIT License.
  Date/time and IANA timezone handling.

- @vvo/tzdb (https://github.com/vvo/tzdb) — MIT License.
  IANA timezone metadata and current offsets.

- city-timezones (https://github.com/kevinroberts/city-timezones) — MIT License.
  City → timezone and representative coordinate lookups.

Optional, NOT bundled or required:

- swisseph (https://github.com/mivion/swisseph) — AGPL / commercial dual
  license. free-human-design can use it as an opt-in high-precision backend
  (EPHE_BACKEND=swisseph) only if a consumer installs it themselves. It is not
  a dependency of this package and none of its code or Astrodienst data files
  are distributed with free-human-design.

Reference data:

- The Human Design bodygraph reference data (gate→center map and the 36
  channels) and the Gene Keys / I-Ching mandala mapping are based on the
  standard, widely-published Human Design and Gene Keys systems.