Ātrium documentation

Live demo. Explore Ātrium’s components, themes, and example workflows in the showcase before building your application.

Choose the guide for the work you are doing. An application developer builds a product frontend using the published @agon/atrium package. An Atrium maintainer develops, tests, and releases the core, publisher, and template packages in this repository.

Context	Start here	What it covers
Build an application with Atrium.	End-to-end integration.	Install starter or showcase, publish local application files, add pages, connect a backend, build, and deploy.
Integrate into an existing frontend.	Integration overview.	Application ownership, required build integration, and public entry points.
Configure a component.	Component guides.	Copyable examples, settings, lifecycle, and application responsibilities.
Customize appearance.	Theming and layout.	Application Sass, semantic tokens, preferences, and RTL.
Develop Atrium itself.	Maintainer guide.	Repository setup, architecture, coding standards, verification, and package releases.
Work through a coding agent.	Agent guidance.	Repository rules and links to the same human documentation.

Documentation layout

• integration/ contains procedures run in your own application repository. The published npm package is the normal dependency source.
• components/ contains shared API and usage reference for application developers and Atrium maintainers.
• development/ contains procedures run in the Atrium repository, including isolated archive tests and hosted publication.
• agents/ contains task-specific instructions for coding agents.
• images/ contains reviewed production screenshots used by the root README.

The root changelog records product changes. Use current verification procedures for checks and the dated verification record for earlier results.

Author

Laurent Declercq l.declercq@agon-innovation.ch

License

Unless otherwise stated all source code is licensed under LGPL 2.1 and has the following copyright:

© 2026, Agon Partners Innovation AG, All rights reserved.

The design material and the “Agon Ātrium” trademark is the property of their authors. Reuse of them without prior consent of their respective authors is strictly prohibited.

Version

Version: 20260921