Skip to content

Launching the H.O.T EARTH docs

2026-07-23

H.O.T EARTH has always shipped its homework. Every world already comes with a physics note and a data-sources note in the repository, stating what is computed, from which measured inputs, and how accurate each claim is. What it did not have was a front door for all of it. This is that front door.

The app is now 25 worlds, from a live NASA-imagery globe to 18,000 real galaxies mapped in 3D. The methodology behind them had grown into dozens of markdown files that were easy to write and hard to browse. A documentation site turns that material into something you can search, navigate, and link to.

It is built with Astro Starlight: static, fast, dark-first, with search, keyboard navigation, and “edit this page” out of the box. It carries the same mission-control look as the app, down to the solar-amber accent and the terminator-and-orbit mark.

The docs follow the Diátaxis framework:

The point of writing this down is not polish for its own sake. It is that a twin you can trust has to show its work. These docs are where the work lives.

Start at the Introduction, or run the whole thing locally in about 30 seconds with the Quickstart.