# Tassilo Horn

> researcher at the Institute for Software Technology at the University of Koblenz-Landau

**Wikidata**: [Q110803171](https://www.wikidata.org/wiki/Q110803171)  
**Source**: https://4ort.xyz/entity/tassilo-horn

## Summary
Tassilo Horn is a German computer scientist and researcher employed at the University of Koblenz-Landau's Institute for Software Technology. He is best known as the maintainer of the AUCTeX free software package for editing LaTeX documents within the GNU Project.

## Biography
- Born: 1980
- Nationality: Germany
- Education: (Not specified in source material)
- Known for: Maintaining the AUCTeX software
- Employer(s): University of Koblenz-Landau
- Field(s): Computer Science

## Contributions
Tassilo Horn is a prominent figure in the free software movement, primarily recognized for his role as the maintainer of AUCTeX, a powerful Emacs package for editing LaTeX documents. His leadership of this critical tool, used extensively by academics and researchers worldwide, ensures its ongoing development, bug fixes, and feature enhancements within the GNU Project. Horn actively contributes to the free software ecosystem, evident through his involvement with the GNU Project, his personal development efforts hosted on platforms like SourceHut (sr.ht/~tsdh/), and his contributions reflected on platforms such as GitHub (username: tsdh) and GNU Savannah (username: tsdh). His work directly supports and improves the tools used by the scientific and technical writing communities.

## FAQs
### Q: What is Tassilo Horn's primary software contribution?
A: Tassilo Horn is primarily known as the maintainer of AUCTeX, a free software package for editing LaTeX documents within the Emacs text editor. He has held this role since at least 2022.

### Q: Is Tassilo Horn affiliated with the GNU Project?
A: Yes, Tassilo Horn is a member of the GNU Project, as confirmed by his user profile on Savannah.gnu.org (username: tsdh) and references to his involvement.

### Q: Where does Tassilo Horn live and work?
A: Tassilo Horn resides in Koblenz and works at the University of Koblenz-Landau.

## Why They Matter
Tassilo Horn's work matters because his stewardship of AUCTeX directly impacts a vast community of scientists, engineers, and researchers who rely on LaTeX for technical and academic writing. AUCTeX is a foundational tool in this ecosystem, and his role as maintainer ensures its stability and evolution. His commitment to the free software movement and the GNU Project aligns with principles of open collaboration and user control, influencing the tools and practices within the scientific computing community. Without his dedicated maintenance, the development of AUCTeX could stall, hindering productivity for countless LaTeX users.

## Notable For
- Maintainer of AUCTeX, the GNU Emacs package for LaTeX editing
- Member of the GNU Project
- Active contributor to the free software movement
- Resides and works in Koblenz, Germany
- Maintainer presence on multiple open-source platforms (GitHub, GitLab, GNU Savannah: username tsdh)

## Body
### Professional Background
- Researcher at the Institute for Software Technology, University of Koblenz-Landau.
- German national, born in 1980.

### Open Source Contributions & Affiliations
- **AUCTeX Maintainer:** Holds the formal position of maintainer for the AUCTeX project.
- **GNU Project:** Actively participates as a member (Savannah username: tsdh).
- **Platforms:** Maintains a presence on GitHub (username: tsdh), GitLab (username: tsdh), and GNU Savannah (username: tsdh).
- **Projects:** Hosts personal development work on SourceHut (sr.ht/~tsdh/).
- **Movement:** Associated with the free software movement.

### Technical Affiliations
- **Employer:** University of Koblenz-Landau.
- **Work Location:** Koblenz.
- **Languages:** Speaks and writes German and English.
- **Online Presence:** Maintains an official blog (https://tsdh.org/blog.html) and personal website (https://tsdh.org/).
- **Academic Profiles:** Listed with dblp (ID: 04/7908), Semantic Scholar (ID: 3306683), ResearchGate (ID: 57143435), IEEE Xplore (ID: 37303840800), and Goodreads (ID: 15671238).

## References

1. Integrated Authority File
2. German National Library
3. [Source](https://tsdh.org/)
4. [Source](https://savannah.gnu.org/users/tsdh)