Add editor configuration option

home/editor.nix

@@ -0,0 +1,33 @@
+{ lib, config, ... }:
+with lib;
+let
+  cfg = config.me.editor;
+
+  binary-name = {
+    helix = "hx";
+    neovim = "nvim";
+  }.${cfg.name};
+in
+{
+  options.me.editor = {
+    name = mkOption {
+      type = types.enum [
+        "helix"
+        "neovim"
+      ];
+    };
+  };
+
+  config = {
+    programs.fish = {
+      shellAliases = {
+        vim = binary-name;
+        nvim = binary-name;
+      };
+      interactiveShellInit = ''
+        set -x EDITOR ${binary-name}
+      '';
+    };
+    programs.git.extraConfig.core.editor = binary-name;
+  };
+}

home/fish.nix

@@ -49,7 +49,6 @@ in {
         tree = "${pkgs.eza}/bin/eza -T";
         vup = "nvim --headless -c 'autocmd User PackerComplete quitall' -c 'PackerSync'";
         vimdiff = "nvim -d";
-        vim = "nvim";
         pydoc = "python -m pydoc";
       }
       // lib.optionalAttrs isLinux {

home/git/global.nix

@@ -118,7 +118,6 @@
         autocrlf = "input";
         safecrlf = true;
         whitespace = "fix";
-        editor = "nvim";
         mergeoptions = "--no-ff";
         preloadindex = true;
         ignorecase = false;

home/home.nix

@@ -22,6 +22,7 @@ in {
       ./dark-mode.nix
       ./default-applications.nix
       ./direnv.nix
+      ./editor.nix
       ./emacs.nix
       ./eza.nix
       ./firefox.nix
@@ -84,6 +85,7 @@ in {
   # custom properties
   me =
     {
+      editor.name = "neovim";
       atuin.enable = false;
       font-name = "JetBrains Mono";
       font-style = "Semibold";