+**Gnu Emacs** is a highly extensible and customizable [text editor](/wiki/text_editor), a core component of the [GNU Project](/wiki/gnu_project). Often described as an operating system within itself, its power comes from an embedded [Lisp](/wiki/lisp) interpreter, allowing users to deeply modify and extend its functionality.
+## See also
+- [Org Mode](/wiki/org_mode)
+- [Free Software](/wiki/free_software)
+- [Richard Stallman](/wiki/richard_stallman)
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