View source for Emacs

{{Expansion|This article is incomplete.}}

For reference use [https://nixos.org/nixos/manual/index.html#module-services-emacs the emacs chapter in the nixos manual].
== About == 
Emacs is an interactive graphical emacs lisp interpreter that comes with many applications, but is primarily used as a text and code editor.  It has one of the largest repositories of packages of any similar code editor such as {{ic|vim}} or its fork {{ic|neovim}}. 
== Installation ==

=== Emacs overlay ===
As of July 2021, the Nix community offers [https://github.com/nix-community/emacs-overlay/blob/f177e5d14ad2e1edceb63f3ab8aa9748ebe6383c/default.nix#L104 7 variants of GNU Emacs] as overlays: emacsGit, emacsGcc, emacsPgtk, emacsPgtkGcc, emacsUnstable, emacsGit-nox, and emacsUnstable-nox. For installing one of them, add the following lines to {{ic|/etc/nixos/configuration.nix}} (replace emacsPgtkGcc with the variant of your choice).
<syntaxhighlight lang="nix">
{
  services.emacs.package = pkgs.emacsPgtkGcc;

  nixpkgs.overlays = [
    (import (builtins.fetchGit {
      url = "https://github.com/nix-community/emacs-overlay.git";
      ref = "master";
      rev = "bfc8f6edcb7bcf3cf24e4a7199b3f6fed96aaecf"; # change the revision
    }))
  ];

  environment.systemPackages = with pkgs; [
    emacsPgtkGcc
  ];
}
</syntaxhighlight>

[[Category:NixOS]]
[[Category:Incomplete]]