set default editor

home-manager/nixvim/config.nix

@@ -1,6 +1,8 @@
 {lib, pkgs, ...}:
 {
   enable = true;
+  viAlias = true;
+  vimAlias = true;
   colorschemes.dracula.enable = true;
 
   globals.mapleader = " ";

home-manager/nixvim/default.nix

@@ -29,4 +29,7 @@ let
   ];
   merged =
     builtins.foldl' (acc: elem: lib.recursiveUpdate acc elem) { } configs;
-in { programs.nixvim = merged; }
+in {
+  home.sessionVariables = { EDITOR = "nvim"; };
+  programs.nixvim = merged;
+}