Credits & Licenses

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SIDERA 4D is built entirely on free software and on an idea that belongs to no one.

Idea and development

Original idea and direction: Analemma Labs, inspired by an oral teaching of initiatic astrology and by explicit reference to Leonardo's Vitruvian Man, the colures, the equatorial band, and the ecliptic.

Technical development: in collaboration with Claude (Anthropic). The whole project is documented phase by phase in CHANGELOG.md in the repository.

Technology stack

All dependencies are under permissive licenses, compatible with the project's MIT license. SIDERA 4D is fully client-side: the user's browser runs all the code.

Component	Role	License
Three.js 0.164	3D graphics engine (WebGL)	MIT
Astronomy Engine 2.1	Planetary position calculation	MIT
Tone.js 14.8	Audio synthesis (on standby 8B.1 — silent experience by default)	MIT
Luxon 3.4	Dates, timezones, DST	MIT
TypeScript 5.4	Language (development)	Apache 2.0
Vite 5.2	Bundler (development)	MIT

Data and external services

Libraries served via jsDelivr (public CDN). Files are requested on first load and then stored in the browser cache.

Birthplace geocoding (optional) via Nominatim, an OpenStreetMap service. Data © OpenStreetMap contributors, published under the ODbL license. If the network is unavailable or geocoding does not respond, latitude, longitude, and timezone can be entered manually in the form.

No other external service is queried. There is no proprietary backend, no accounts, no tracking cookies, no analytics pixels. Birth data stays in the user's browser; the "Remember on this device" option saves data exclusively in the device's localStorage.

Vitruvian model

The body at the center of the sphere is the Vitruvian Shadow Body: an optional GLB mesh (Male_Model.glb / Female_Model.glb) with a black seal-body material, chosen in the form as a symbolic M/F form. If loading fails, a procedural body generated in Three.js remains as a fallback.

Shadow Body GLB models: original Analemma Labs 3D assets, generated through a ComfyUI Image-to-3D pipeline.

The planetary rays reach symbolic nodes of the body (points of light and impact caps): contemplative correspondences internal to SIDERA. They are not chakras and do not constitute a medical or predictive map or a certified energetic system.

Disclaimer

SIDERA 4D is a symbolic and contemplative tool. It is not a predictive tool, not a medical tool, not a financial tool, and does not constitute professional advice of any kind. The experience is offered as a digital hermetic plate: a visualization of the sidereal sky at the moment of birth, to be observed in silence. Planetary audio is on standby (phase 8B.1): the default experience is silent.

Project license

SIDERA 4D is released under the MIT license. Full text:

MIT License Copyright (c) 2026 Analemma Labs Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Repository

The source code is available under the MIT license. The CHANGELOG.md documents every phase of the project.