From 894babd3da302aa0e62cdfbfd966c7a4a26bf6ad Mon Sep 17 00:00:00 2001
From: jay <jay@zerojay.com>
Date: Mon, 21 Jul 2025 16:15:33 -0400
Subject: [PATCH] Enable auto-cpufreq for battery savings.

---
 flake.nix                                     |  5 +++++
 nodes/hosts/nixwork/configuration.nix         |  2 ++
 nodes/hosts/nixwork/programs/auto-cpufreq.nix | 18 ++++++++++++++++++
 3 files changed, 25 insertions(+)
 create mode 100644 nodes/hosts/nixwork/programs/auto-cpufreq.nix

diff --git a/flake.nix b/flake.nix
index 01c7ebe..e37e649 100644
--- a/flake.nix
+++ b/flake.nix
@@ -10,6 +10,11 @@
       inputs.nixpkgs.follows = "nixpkgs-stable-nixos";
     };
 
+    auto-cpufreq-stable-nixos = {
+      url = "github:AdnanHodzic/auto-cpufreq";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
     disko-stable-nixos = {
       url = "github:nix-community/disko";
       inputs.nixpkgs.follows = "nixpkgs-stable-nixos";
diff --git a/nodes/hosts/nixwork/configuration.nix b/nodes/hosts/nixwork/configuration.nix
index 90e7f15..5f13216 100644
--- a/nodes/hosts/nixwork/configuration.nix
+++ b/nodes/hosts/nixwork/configuration.nix
@@ -9,6 +9,8 @@
     [ # Include the results of the hardware scan.
       ./hardware-configuration.nix
       inputs.nixos-hardware.nixosModules.framework-16-7040-amd
+      inputs.auto-cpufreq.nixosModules.default
+      ./programs/auto-cpufreq.nix
       ./programs/sof-firmware.nix
       # Not working yet.
       ./services/fprintd.nix
diff --git a/nodes/hosts/nixwork/programs/auto-cpufreq.nix b/nodes/hosts/nixwork/programs/auto-cpufreq.nix
new file mode 100644
index 0000000..79b62d0
--- /dev/null
+++ b/nodes/hosts/nixwork/programs/auto-cpufreq.nix
@@ -0,0 +1,18 @@
+{ pkgs, ... }: {
+  # List packages installed in system profile. To search, run:
+  # $ nix search wget
+  programs.auto-cpufreq = {
+    enable = true;
+    settings = {
+      charger = {
+        governor = "performance";
+        turbo = "auto";
+      };
+      battery = {
+        governor = "power-saver";
+        turbo = "never";
+      };
+    };
+  };
+}
+