add powersaving and thunderbolt support

configuration.nix

@@ -14,6 +14,14 @@
   # Use the systemd-boot EFI boot loader.
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
+  boot.loader.grub.copyKernels = true;
+  boot.supportedFilesystems = [ "zfs" ];
+  boot.kernelPackages = pkgs.linuxPackages_latest;
+  boot.loader.grub.useOSProber = true;
+  boot.kernelParams = ["zfs.zfs_arc_max=6884901888"
+                       "nouveau.modeset=0"
+                       "i915.i915_enable_rc6=1"
+                       "i915.i915_enable_fc=1"];
 
   # ntworking.hostName = "nixos"; # Define your hostname.
    # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
@@ -22,8 +30,7 @@
   # networking.proxy.default = "http://user:password@proxy:port/";
   # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
   networking.networkmanager.enable = true;
-  boot.loader.grub.useOSProber = true;
-  boot.kernelParams = ["zfs.zfs_arc_max=6884901888" "nouveau.modeset=0"];
+  networking.hostId = "0b4cbd12";
   # Select internationalisation properties.
    i18n = {
      consoleFont = "Lat2-Terminus16";
@@ -68,14 +75,11 @@
      glxinfo
      nmon
      htop
+     gnumake
+     atop
 
    ];
-  boot.supportedFilesystems = [ "zfs" ];
-  networking.hostId = "0b4cbd12";
-  boot.loader.grub.copyKernels = true;
-  boot.kernelPackages = pkgs.linuxPackages_latest;
   hardware.opengl.driSupport32Bit = true;
-  programs.light.enable = true;
   # Some programs need SUID wrappers, can be configured further or are
   # started in user sessions.
   # programs.mtr.enable = true;