diff --git a/flake.lock b/flake.lock
index 8139e88..323fd5e 100644
--- a/flake.lock
+++ b/flake.lock
@@ -321,11 +321,11 @@
     },
     "nixpkgs_6": {
       "locked": {
-        "lastModified": 1697456312,
-        "narHash": "sha256-roiSnrqb5r+ehnKCauPLugoU8S36KgmWraHgRqVYndo=",
+        "lastModified": 1697723726,
+        "narHash": "sha256-SaTWPkI8a5xSHX/rrKzUe+/uVNy6zCGMXgoeMb7T9rg=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "ca012a02bf8327be9e488546faecae5e05d7d749",
+        "rev": "7c9cc5a6e5d38010801741ac830a3f8fd667a7a0",
         "type": "github"
       },
       "original": {
diff --git a/nixos/foxtrot/default.nix b/nixos/foxtrot/default.nix
index 3ff76a1..7e4cd1a 100644
--- a/nixos/foxtrot/default.nix
+++ b/nixos/foxtrot/default.nix
@@ -26,8 +26,6 @@
       inputs.hardware.nixosModules.common-pc-laptop-ssd
     ];
 
-  nixpkgs.overlays = [outputs.overlays.modifications];
-
   # TODO: hibernation? does sleep suffice?
   # TODO: perform a hardware scan
 
@@ -36,6 +34,7 @@
       efi.canTouchEfiVariables = true;
       systemd-boot.enable = true;
     };
+    kernelPackages = pkgs.linuxPackages_6_5;
     kernelParams = ["amdgpu.sg_display=0"];
     initrd.availableKernelModules = ["xhci_pci" "nvme" "thunderbolt"];
     kernelModules = ["kvm-amd"];
@@ -43,22 +42,23 @@
   hardware.bluetooth.enable = true;
   powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
   services.printing.enable = true;
+  services.power-profiles-daemon.enable = false;
+  services.tlp = {
+    enable = true;
+    settings = {
+      CPU_SCALING_GOVERNOR_ON_AC = "performance";
+      CPU_SCALING_GOVERNOR_ON_BAT = "powersave";
 
-  boot.supportedFilesystems =
-    pkgs.lib.mkForce ["btrfs" "cifs" "f2fs" "jfs" "ntfs" "reiserfs" "vfat" "xfs"];
+      CPU_ENERGY_PERF_POLICY_ON_BAT = "power";
+      CPU_ENERGY_PERF_POLICY_ON_AC = "performance";
 
-  boot.kernelPackages = pkgs.linuxPackagesFor (
-    pkgs.linux_6_5.override {
-      argsOverride = {
-        src = pkgs.fetchurl {
-          url = "https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-6.5.7.tar.xz";
-          sha256 = "sha256-DQnqRIAFyc/lOD5Mcqhys5GIuSj4xE4UawOxt4Ufu4w=";
-        };
-        version = "6.5.7";
-        modDirVersion = "6.5.7";
-      };
-    }
-  );
+      CPU_MIN_PERF_ON_AC = 0;
+      CPU_MAX_PERF_ON_AC = 100;
+      CPU_MIN_PERF_ON_BAT = 0;
+      CPU_MAX_PERF_ON_BAT = 20;
+    };
+  };
+  powerManagement.powertop.enable = true;
 
   networking = {
     firewall = {
diff --git a/overlays/default.nix b/overlays/default.nix
index ad60137..85a4d03 100644
--- a/overlays/default.nix
+++ b/overlays/default.nix
@@ -6,10 +6,6 @@
   # You can change versions, add patches, set compilation flags, anything really.
   # https://nixos.wiki/wiki/Overlays
   modifications = final: prev: {
-    linux_6_5 = prev.linux_6_5.override {
-      patches = [];
-      kernelPatches = [];
-    };
   };
 
   # When applied, the unstable nixpkgs set (declared in the flake inputs) will