Introduce a plainmacs emacs install flavor.

nix/configuration/hosts/neelix/default.nix

@@ -28,4 +28,5 @@
 
   me.kodi.enable = true;
   me.bluetooth.enable = true;
+  me.emacs_flavor = "plainmacs";
 }

nix/configuration/hosts/odo/default.nix

@@ -34,4 +34,5 @@
 
   me.sway.enable = true;
   me.ansible.enable = true;
+  me.emacs_flavor = "full";
 }

nix/configuration/roles/emacs/default.nix

@@ -39,12 +39,29 @@ let
   e_shorthand = pkgs.writeShellScriptBin "e" ''
     exec ${pkgs.emacs_full}/bin/emacs "''${@}"
   '';
+  plain_e_shorthand = pkgs.writeShellScriptBin "e" ''
+    exec ${pkgs.emacs29-pgtk}/bin/emacs "''${@}"
+  '';
 in
 {
   imports = [ ];
 
-  config = lib.mkMerge [
+  options.me.emacs_flavor = lib.mkOption {
-    {
+    type = lib.types.nullOr (
+      lib.types.enum [
+        "full"
+        "plainmacs"
+      ]
+    );
+    default = null;
+    example = "full";
+    description = "What flavor of emacs to set up.";
+  };
+
+  config =
+    lib.mkIf config.me.emacs_flavor != null (
+      lib.mkMerge [
+        (lib.mkIf (config.me.emacs_flavor == "full") {
           environment.systemPackages = with pkgs; [
             plainmacs
             e_shorthand
@@ -69,6 +86,7 @@ in
                       pkgs.nixd # nix language server
                       pkgs.nixfmt-rfc-style # auto-formatting nix files through nixd
                       pkgs.clang # To compile tree-sitter grammars
+                      pkgs.shellcheck
                     ]
                   }
                 '';
@@ -102,6 +120,32 @@ in
           };
 
           environment.variables.EDITOR = "${plainmacs}/bin/plainmacs";
-    }
+        })
+        (lib.mkIf (config.me.emacs_flavor == "plainmacs") {
+          environment.systemPackages = with pkgs; [
+            emacs29-pgtk
+            plainmacs
+            plain_e_shorthand
           ];
+
+          environment.persistence."/state" = lib.mkIf (!config.me.buildingIso) {
+            hideMounts = true;
+            users.talexander = {
+              directories = [
+                ".config/emacs/eln-cache" # Installed packages
+                ".config/emacs/elpa" # Installed packages
+                ".config/emacs/private" # For recentf
+                ".config/emacs/tree-sitter" # Compiled tree-sitter grammars
+              ];
+              files = [
+                ".config/emacs/history" # For savehist
+                ".config/emacs/.last-package-update-day" # For use-package
+              ];
+            };
+          };
+
+          environment.variables.EDITOR = "${plainmacs}/bin/plainmacs";
+        })
+      ]
+    );
 }