another reorg; add options for full or minimal helix install

configuration/modules/laptop.nix

@@ -0,0 +1,21 @@
+{ ... }:
+
+{
+  services.power-profiles-daemon.enable = false;
+  services.tlp = {
+    enable = true;
+    settings = {
+      RESTORE_DEVICE_STATE_ON_STARTUP = 1;
+      USB_AUTOSUSPEND = 0;
+      PLATFORM_PROFILE_ON_AC = "performance";
+      PLATFORM_PROFILE_ON_BAT = "low-power";
+      CPU_ENERGY_PERF_POLICY_ON_AC = "performance";
+      CPU_ENERGY_PERF_POLICY_ON_BAT = "power";
+      CPU_BOOST_ON_AC = 1;
+      CPU_BOOST_ON_BAT = 0;
+    };
+  };
+
+  # Enable touchpad support (enabled default in most desktopManager).
+  services.libinput.enable = true;
+}