The Homepage

The Advanced Typesetting and Hypertext Environment for Notes and Archives.

Remark

This website itself is made with .

1Introduction

Definition

, i.e. the Advanced Typesetting and Hypertext Environment for Notes and Archives, is a math-centered knowledge workstation derived from GNU , combining structured WYSIWYG typesetting with vault-based knowledge organization and inter-connectivity needed by large mathematical note collections.

is not for everyone. Use it only if you are disappointed with both and Obsidian. is not a editor, not yet another Obsidian clone, and not a conservative distribution. It is an experimental research workstation and mathematical knowledge infrastructure. It assumes that you want semantic mathematical documents, native typesetting, cross-document structure, vault-wide operations, and deep customization more than you want broad ecosystem compatibility.

If plain Markdown is enough, use Obsidian. If batch typesetting and source-text control are enough, use . exists for the uncomfortable middle: interactive mathematical writing at scale.

in action, showing a document, namespace explorer, global search and outline.

grew out of a long attempt to maintain a serious mathematical vault. The first versions were not editors, but tools around Obsidian: exporters, indexers, metadata generators, a Markdown dialect, and a compiler supporting wikilinks, transclusions, and structured callouts. These tools eventually showed that the real problem was not conversion. The vault, the mathematical document, the search system, and the publishing pipeline needed to belong to one environment.

is that environment: a -based mathematical knowledge system with vaults, namespaces, theorem anchors, search, transclusion, maintenance tools, and static website publishing.

A timeline leading to , readable from left to right.

Here are some links to the predecessors of : Powersidian and Obindex.ps1, ob-emacs and ofmc.

The GitHub repository of : https://github.com/NuaptanEvalisk/ATHENA
's releases: https://github.com/NuaptanEvalisk/ATHENA/releases

2Features

Structured mathematical editing. -based editing for definitions, theorems, proofs, formulas, and long mathematical documents, with optimizations for real-time WYSIWYG input and typesetting.
Mathematical knowledge management. treats a mathematical archive as a knowledge vault, not a collection of standalone documents. Using enunciation-level wikilinks and transclusions, definitions, propositions, examples and more can be referenced and reused effortlessly.
Namespaces. allows you to organize your math categorically. Namespace is such an abstraction with which you no longer face the dilemma of whether to put 'lectures notes on subject X' in the directory of 'lecture notes' or the directory of 'subject X'.
Publishing. In addition to exporting documents and PDFs, with selected parts of a vault can be exported into static websites, while retaining most of the structure. You are currently looking at one.

Remark

For the full list of 's features, go to - Features. For more screenshots of , go to - Gallery.

3Download and Installation

Pre-compiled binaries for GNU/Linux and Microsoft Windows can be found on the GitHub releases page. Only x86_64 binaries are available. The AppImage is tested on openSUSE Tumbelweed and Ubuntu (in a distrobox container). Because I don't have any physical devices with Windows installed, the Windows binary is tested using wine and only basic smoke tests are included.

It is more recommended to compile from source, which is available on GitHub. is built with CMake and the Intel oneAPI C++ compiler (icpx) is the recommended compiler. Details about dependencies and building instructions can be found in the COMPILE file in the source repository.

Note

uses Qt 6 and supports Wayland on GNU/Linux natively. Although it should also be able to work with xcb, X11 support is not actively maintained. To make the Visual Studio-flavored docking experience possible, patches the Qt Advanced Docking System and uses the xdg-toplevel-drag protocol, which Chromium also uses. This protocol is supported by the latest KDE and GNOME desktops.

Remark

inherits the GUILE 1.8 dependency from GNU . You may obtain the source code of GUILE 1.8 here. One long-term plan of is to eventually rewrite all Scheme code with C++ so dependence on GUILE would be removed.

4Licensing and Copyright

is free software licensed under the GNU General Public License version 3. is a fork of GNU . A substantial part of the source tree comes from GNU and remains copyright its original authors and contributors. -specific modifications and additions are copyright © 2026 Nuaptan Evalisk. The GPLv3 applies to as a software program. Documents written with , vault contents, exported PDFs, and -generated websites remain the property of their authors unless separately licensed.

See the - Licensing page for full copyright information and third-party notices.

5Acknowledgments

is possible because GNU already exists. TeXmacs provides the mathematical editing and structured typesetting foundation on which is built.

The project also relies on the wider free-software ecosystem, including Qt, Qt Advanced Docking System, GUILE, SQLite, FreeType, ImageMagick, Ghostscript, llama.cpp, libtcc, and other libraries and tools used for the interface, document processing, indexing, export, and runtime infrastructure.

is an independent fork and extension of . It is not an official GNU release.

6Contact

is maintained by Nuaptan Evalisk.

For bug reports, technical discussion, build issues, documentation problems, or questions about , contact [email protected].

[Source: ATHENA - Licensing.ath]

Warning

is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose. See the GNU General Public License version 3 for details.

Remark

The no-warranty warning above is an instance of transclusion.