# geiser-mit > support for GNU MIT Scheme in Geiser **Wikidata**: [Q108042340](https://www.wikidata.org/wiki/Q108042340) **Source**: https://4ort.xyz/entity/geiser-mit ## Summary **geiser-mit** is a free‑software Emacs Lisp package that adds support for the GNU MIT Scheme interpreter to the Geiser development environment. It is maintained and copyrighted by Spanish computer scientist José Antonio Ortega Ruiz, distributed through the Emacs Lisp Package Archive (ELPA) and released under a 3‑clause BSD license. ## Key Facts - **Purpose:** Provides GNU MIT Scheme integration for the Geiser framework in GNU Emacs. - **Current stable version:** 0.15 (released 4 December 2021). - **Previous stable version:** 0.13 (released 7 August 2021). - **License:** 3‑clause BSD License. - **Instance of:** Free software. - **Programming language:** Emacs Lisp. - **Platform:** GNU Emacs (Geiser component). - **Part of:** The Geiser Project; hosted in the NonGNU ELPA repository since 7 August 2021. - **Maintainer & copyright holder:** José Antonio Ortega Ruiz (Spanish computer scientist). - **Distributed by:** Emacs Lisp Package Archive (ELPA) starting 7 August 2021. - **Website:** https://gitlab.com/emacs-geiser/mit (primary) and https://elpa.nongnu.org/nongnu/geiser-mit.html (ELPA page). - **Source code repository:** https://gitlab.com/emacs-geiser/mit.git (GitLab). - **Aliases:** emacs‑geiser‑mit, Geiser‑Mit. - **Related concepts:** free software, Emacs Lisp, MIT/GNU Scheme, José Antonio Ortega Ruiz. ## FAQs **What is the main function of geiser-mit?** It enables GNU MIT Scheme to be used interactively inside Emacs via the Geiser environment, offering features such as REPL integration, debugging, and code navigation. **Which programming language is geiser-mit written in?** The package is implemented entirely in Emacs Lisp. **Who maintains and holds the copyright for geiser-mit?** José Antonio Ortega Ruiz, a Spanish computer scientist, is both the maintainer and the copyright holder. **Under what license is geiser-mit released?** It is distributed under the permissive 3‑clause BSD License. **Where can I download or view the source code for geiser-mit?** The source code resides at https://gitlab.com/emacs-geiser/mit.git and can be accessed via the project's GitLab page. **What is the latest stable release of geiser-mit and when was it published?** Version 0.15 is the latest stable release, published on 4 December 2021. **How is geiser-mit distributed to users?** It is packaged in the Emacs Lisp Package Archive (ELPA) under the NonGNU ELPA repository, available since 7 August 2021. **Which larger project does geiser-mit belong to?** It is a component of the Geiser Project, which provides Scheme interaction tools for Emacs. **What platforms can run geiser-mit?** The package runs on GNU Emacs, leveraging the Geiser integration layer. **Is geiser-mit considered free software?** Yes, it is classified as free software, allowing users to run, study, modify, and redistribute it. ## Why It Matters geiser-mit bridges the gap between GNU MIT Scheme—a powerful Scheme implementation with its own editor and debugger—and the highly extensible GNU Emacs environment. By doing so, it lets developers work with Scheme code using Emacs’ sophisticated editing capabilities, unified REPL, and debugging tools, streamlining the workflow for Scheme programmers. Its free‑software licensing and integration into the widely used ELPA ecosystem ensure broad accessibility and community-driven improvement, reinforcing the open‑source ethos of both the Scheme and Emacs communities. ## Notable For - First‑class support for GNU MIT Scheme inside the Geiser framework. - Maintained by a notable computer scientist, José Antonio Ortega Ruiz. - Distributed through NonGNU ELPA, expanding the reach of Scheme tooling in Emacs. - Released under a permissive 3‑clause BSD license, encouraging reuse and contribution. - Provides stable releases (0.13, 0.15) with clear versioning and release dates. ## Body ### History and Project Context geiser-mit was created to extend the Geiser Project, which supplies Scheme interaction facilities for GNU Emacs. It entered the NonGNU ELPA repository on 7 August 2021, marking its formal distribution channel. The package’s development aligns with the free‑software movement, adhering to the principles of software that can be freely run, studied, modified, and shared. ### Architecture and Technical Details - **Language:** Implemented in Emacs Lisp, allowing seamless integration with Emacs’ native extension mechanisms. - **Platform Dependency:** Requires GNU Emacs, leveraging Geiser’s “applies_to_part” relationship to embed Scheme support. - **License:** Distributed under the 3‑clause BSD License, a permissive open‑source license. - **Versioning:** Two stable releases are documented: 0.13 (7 August 2021) and 0.15 (4 December 2021). Each release includes metadata such as release dates, version identifiers, and source tarballs. ### Distribution and Accessibility geiser-mit is packaged for the Emacs Lisp Package Archive (ELPA), specifically the NonGNU ELPA repository. The ELPA entry, first listed on 7 August 2021, provides users with a straightforward installation path via Emacs’ package manager. The package’s website on GitLab (https://gitlab.com/emacs-geiser/mit) serves as the primary hub for documentation, issue tracking, and source code access. ### Maintenance and Governance José Antonio Ortega Ruiz, a Spanish computer scientist, is the sole maintainer and copyright holder. His stewardship ensures that updates, bug fixes, and compatibility adjustments are consistently applied. The project’s metadata records his role explicitly, linking the maintainer to both the “maintained_by” and “copyright_holder” properties. ### Relationship to Related Entities - **Free Software:** geiser-mit is classified as free software, sharing the broader philosophy of projects like the GNU ecosystem. - **Emacs Lisp:** As an Emacs Lisp package, it inherits the extensibility and community support of the Emacs environment. - **MIT/GNU Scheme:** The package’s “use” property specifies that it provides support for MIT/GNU Scheme, a Scheme implementation with its own editor and debugger. - **Geiser Project:** geiser-mit is a component of the larger Geiser Project, which aggregates Scheme interaction tools for Emacs. ### Community and Impact By delivering MIT/GNU Scheme support within Emacs, geiser-mit enables Scheme developers to work in a unified, highly customizable environment. This reduces context switching, improves productivity, and fosters a cohesive development experience. Its inclusion in ELPA ensures that the package reaches a wide audience of Emacs users, reinforcing the collaborative nature of the free‑software community. ### References and Resources - **Primary repository:** https://gitlab.com/emacs-geiser/mit.git - **ELPA package page:** https://elpa.nongnu.org/nongnu/geiser-mit.html - **Release announcements:** GNU Emacs sources mailing list archives (August 2021, December 2021). --- *All information presented is derived from the provided source material and reflects the state of geiser-mit as of the latest documented releases.* ## References 1. [Geiser-Mit version 0.13. 2021](https://lists.gnu.org/archive/html/gnu-emacs-sources/2021-08/msg00023.html) 2. [Geiser-Mit version 0.15. 2021](https://lists.gnu.org/archive/html/gnu-emacs-sources/2021-12/msg00014.html) 3. [Source](https://elpa.nongnu.org/nongnu/geiser-mit.html)