GNU Emacs

Emacs is an operating system masquerading as an editor. v29+ (2025) features built-in Eglot (LSP), Tree-sitter, and Native Compilation for speed.

When to Use

• Lisp Hackers: Configured in Elisp.
• Org Mode: The best note-taking/GTD system in existence.
• Magit: The best Git interface ever made.

Core Concepts

Buffers & Windows

Everything is a buffer (files, terminals, games). Windows display buffers.

Key Chords