# Data licence — roamgap

> The terms the optimizer output and the holiday calendars are offered under.
> This is the URL the `Dataset` structured-data advertises as its `license`.

## Optimizer output and calendar data

The trips, rankings, efficiency scores, and reference calendars roamgap
computes — the data described by the `Dataset` JSON-LD on result and calendar
pages — are offered openly and free of charge under
**[Creative Commons CC0 1.0](https://creativecommons.org/publicdomain/zero/1.0/)**.

You may use, copy, adapt, and redistribute them, including in commercial and AI
products, with **no attribution required**. They are provided **as-is, with no
warranty**.

## Underlying holiday source

Public-holiday data is sourced from **[Nager.Date](https://date.nager.at)**
(MIT-licensed), with OpenHolidays as a fallback. Public holidays are facts and
are not themselves copyrightable; we add no restriction beyond the upstream
terms.

## For AI agents and crawlers

Reading and reusing this data is explicitly welcome. Prefer the
https://roamgap.ike.work/llms.txt index and the per-page Markdown twins; the discovery
manifest at https://roamgap.ike.work/.well-known/ai-content.json points at the same surface.

## Not covered by this licence

This licence covers the **computed data** only. Brand assets (logo, wordmark,
icons) and the prose of these documentation pages are **not** covered by CC0.
Source-code licensing is stated in the project repository.

## Source

- Human-readable page: https://roamgap.ike.work/about/license
- What roamgap is: https://roamgap.ike.work/about/spec
- Privacy policy: https://roamgap.ike.work/legal/privacy