Powersave: Move tlp to laptop powersave.

config/Powersave.nix

@@ -34,12 +34,9 @@ let
   '';
 in
 {
-  config = lib.mkIf cfg.enable {
-    services = {
-      tlp.enable = true;
-      upower.enable = true;
-    };
-
+  config = lib.mkIf cfg.enable (
+    lib.mkMerge [
+      {
         environment.systemPackages = [ script ];
         systemd = {
           services.powersave-cpu = {
@@ -57,5 +54,14 @@ in
           # HACK: Allow user access.
           tmpfiles.rules = [ "z ${cfg.cpu.boost.controlFile} 0777 - - - -" ];
         };
+      }
+
+      (lib.mkIf cfg.laptop {
+        services = {
+          tlp.enable = true;
+          upower.enable = true;
         };
+      })
+    ]
+  );
 }

home/program/thunderbird/default.nix

@@ -1,4 +1,10 @@
-{ __findFile, config, lib, pkgs, ... }:
+{
+  __findFile,
+  config,
+  lib,
+  pkgs,
+  ...
+}:
 {
   enable = true;
   package = pkgs.thunderbird-esr;

option/Powersave.nix

@@ -1,7 +1,14 @@
-{ lib, ... }:
+{ lib, config, ... }:
+let
+  purpose = config.module.purpose;
+in
 {
   options.module.powersave = {
     enable = lib.mkEnableOption "the powersave";
+    laptop = lib.mkOption {
+      default = purpose.laptop;
+      type = lib.types.bool;
+    };
     cpu.boost = {
       disableCmd = lib.mkOption {
         default = null;