Add backlight to citadel

hosts/citadel/default.nix

@@ -1,4 +1,4 @@
-{ inputs, lib, pkgs, ... }:
+{ inputs, lib, pkgs, config, ... }:
 let
   # Disko setup
   fsType = "btrfs"; # one of ext4 or btrfs. Use btrfs if using impermanence
@@ -32,13 +32,18 @@ in
       ../common/optional/dwm.nix
       ../common/optional/nfs-mounts/music.nix
       ../common/optional/printing.nix
+      ../common/optional/backlight.nix
 
     ];
 
   boot = {
     blacklistedKernelModules = [ "snd_hda_intel" "snd_soc_skl" ];
     kernelModules = [ "iwlwifi" ];
+    initrd.kernelModules = [ "thinkpad-acpi" "acpi-call" ];
     kernelPackages = pkgs.linuxPackagesFor pkgs.linux_latest;
+    extraModulePackages = [
+      config.boot.kernelPackages.acpi_call
+    ];
     loader = {
       systemd-boot.enable = true;
       efi.canTouchEfiVariables = true;
@@ -63,7 +68,24 @@ in
     XCURSOR_SIZE = "64";
   };
 
+  services.tlp = {
+    enable = true;
+    settings = {
+      CPU_SCALING_GOVERNOR_ON_AC = "ondemand";
+      CPU_SCALING_GOVERNOR_ON_BAT = "powersave";
+
+      START_CHARGE_THRESH_BAT0 = 80;
+      STOP_CHARGE_THRESH_BAT0 = 85;
+
+      USB_BLACKLIST_PHONE = 1;
+    };
+  };
+
   hardware = {
+    bluetooth = {
+      enable = true;
+      powerOnBoot = true;
+    };
     enableRedistributableFirmware = true;
     firmware = [
       pkgs.sof-firmware

hosts/common/optional/backlight.nix

@@ -0,0 +1,7 @@
+{ pkgs, ... }:
+{
+  environment.systemPackages = [
+    pkgs.brightnessctl
+  ];
+  services.illum.enable = true;
+}