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<!DOCTYPE html><html><head><meta name="viewport" content="width=device-width"/><meta charSet="utf-8"/><title>GNU Emacs</title><script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script><script id="MathJax-script" async="" src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script><script type="text/x-mathjax-config">
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</script><meta name="next-head-count" content="6"/><link rel="preload" href="/wiki/_next/static/css/52fc2ba29703df73922c.css" as="style"/><link rel="stylesheet" href="/wiki/_next/static/css/52fc2ba29703df73922c.css" data-n-g=""/><noscript data-n-css=""></noscript><link rel="preload" href="/wiki/_next/static/chunks/main-ae4733327bd95c4ac325.js" as="script"/><link rel="preload" href="/wiki/_next/static/chunks/webpack-50bee04d1dc61f8adf5b.js" as="script"/><link rel="preload" href="/wiki/_next/static/chunks/framework.9d524150d48315f49e80.js" as="script"/><link rel="preload" href="/wiki/_next/static/chunks/commons.0e1c3f9aa780c2dfe9f0.js" as="script"/><link rel="preload" href="/wiki/_next/static/chunks/pages/_app-8e3d0c58a60ec788aa69.js" as="script"/><link rel="preload" href="/wiki/_next/static/chunks/940643274e605e7596ecea1f2ff8d83317a3fb76.4841a16762f602a59f00.js" as="script"/><link rel="preload" href="/wiki/_next/static/chunks/pages/%5B%5B...slug%5D%5D-1aa198f87ede1cd0e1dc.js" as="script"/></head><body><div id="__next"><main><h1>GNU Emacs</h1><section class="post-metadata"><span>Date: <!-- -->2021-06-20 20:42:44 +08:00</span><span>Date modified: <!-- -->2021-07-22 14:25:21 +08:00</span></section><nav class="toc"><ol class="toc-level toc-level-1"></ol></nav><p>The ever-popular Emacs, <a href="https://insights.stackoverflow.com/survey/2019#technology-_-most-popular-development-environments">at least popular enough to be used by 4.5% of the respondents from the Stack Overflow survey of 2019</a>.
It is one of the usual symbol of extensibility and <a href="/wiki/2021-07-22-14-25-13">Free software</a> due to its ecosystem of plugins and extensions integrating Emacs.
It also allows the user to customize anything within it.
</p><p>To show how extensible it is, here is a list of extensions that may as well be an entirely new application altogether:
</p><ul><li><p><a href="https://gitlab.com/phillord/org-drill/">Entirely new spaced repetition on top of Org mode</a>.
</p></li><li><p><a href="https://github.com/org-roam/org-roam/">Implementation of Roam Research with Org mode documents</a>.
</p></li><li><p><a href="http://magit.vc/">Comprehensive Git client</a>.
</p></li><li><p><a href="https://melpa.org/#/?q=window%20manager">Window managers inside Emacs</a>.
</p></li></ul><p>Among other things, it is also where <a href="/wiki/2020-04-20-16-51-40">Org mode</a> documents are often written from as well as making use of <a href="/wiki/2020-04-17-21-41-30">Org mode: Babel</a> as a component for <a href="/wiki/2020-04-12-11-20-53">Reproducible research</a>.
</p><p>People have been building it with complex workflows all in one environment.
In a way, Emacs is an entire operating system by itself.
</p><p>As a complex text editor, you can start with <a href="/wiki/editor.emacs.help-system">Using the built-in help system of Emacs</a>.
</p><section><h2>Backlinks</h2><ul><li><a href="/wiki/2020-04-17-21-41-30">Org mode: Babel</a></li><li><a href="/wiki/2020-04-20-16-51-40">Org mode</a></li><li><a href="/wiki/editor.emacs.help-system">Using the built-in help system of Emacs</a></li></ul></section></main></div><script id="__NEXT_DATA__" type="application/json">{"props":{"pageProps":{"metadata":{"date":"\"2021-06-20 20:42:44 +08:00\"","date_modified":"\"2021-07-22 14:25:21 +08:00\"","language":"en","source":""},"title":"GNU Emacs","hast":{"type":"root","children":[{"type":"element","tagName":"nav","properties":{"className":"toc"},"children":[{"type":"element","tagName":"ol","properties":{"className":"toc-level toc-level-1"},"children":[]}]},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"The ever-popular Emacs, 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