Emacs: Difference between revisions

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 </syntaxhighlight>Note that if the expression <code>(emacsPackagesFor emacs-pgtk)</code> is present, <code>emacs-pgtk</code> need not be listed separately in the list <code>environment.systemPackages</code>. Indeed, if one does that, <code>nixos-rebuild</code> will warn about link collisions when the configuration is rebuilt.
+====== Alternative way of installation to ensuring consistent package management for emacs and emacsclient ======
+If you plan to use the same packages for both emacs and emacsclient, you can define a custom emacs like this:
+{{file|/etc/nixos/configuration.nix|nix|<nowiki>
+  nixpkgs.config.packageOverrides = pkgs: rec {
+    myEmacs = pkgs.emacs.pkgs.withPackages (epkgs: with epkgs; [
+      org
+      nixmode
+      ... # list all your desired emacsPackages here
+    ]);
+  };
+</nowiki>}}
+You may then reference it twice:
+{{file|/etc/nixos/configuration.nix|nix|<nowiki>
+  ## if you want it per-user instead of system-wide use 'users.users.<name>.packages = with pkgs; [' instead
+  environment.systemPackages = with pkgs; [
+    myEmacs
+  ];
+  ## enabling emacsclient and making all the packages available
+  services.emacs = {
+    enable = true;
+    package = pkgs.myEmacs;
+  };
+</nowiki>}}
+Using this approach, there is no need to keep two lists of emacsPackages in sync.
 ==== Tree-sitter ====