use small patches instead of ntfsplus fork

modules/hardware/acer-undervolt.nix

@@ -1,42 +1,35 @@
-{ config, lib, pkgs, modulesPath, ... }:
+{ config, lib, pkgs, ... }:
+
+# Manual undervolting / power tuning for Ryzen 7 8845HS (Hawk Point, znver4).
+#
+# Provides:
+#   - ryzen_smu kernel module (loaded at boot)
+#   - ryzenadj userspace tool for poking the SMU
+#
+# nixpkgs already ships:
+#   - linuxPackages.ryzen-smu from the amkillam fork (Phoenix/Hawk Point aware)
+#   - ryzenadj v0.17.0 which has Hawk Point support and talks to ryzen_smu
+#     via the kernel module backend (preferred over /dev/mem).
+# So no custom forks/overrides are needed any more.
+#
+# This module deliberately does NOT apply any tuning automatically.
+# Run `ryzenadj` manually as root to experiment, then come back with
+# results and we'll decide whether to wire in a systemd service to
+# persist values across boot / resume.
 
 {
-  options.lumpiasty.acerUndervolt = lib.mkEnableOption "Enable Acer undervolt module";
+  options.lumpiasty.acerUndervolt = lib.mkEnableOption "ryzenadj + ryzen_smu tooling for Acer 8845HS";
 
-  config = lib.mkIf config.lumpiasty.acerUndervolt (
-  let 
-    # Use forked version of ryzen_smu
-    # https://github.com/FlyGoat/RyzenAdj/issues/350#issuecomment-2971428510
-    ryzen-smu = config.boot.kernelPackages.ryzen-smu.overrideAttrs (oldAttrs: {
-      src = pkgs.fetchFromGitHub {
-        owner = "amkillam";
-        repo = "ryzen_smu";
-        rev = "172c316f53ac8f066afd7cb9e1da517084273368";
-        sha256 = "sha256-U2UMWY7XgLXOpNgl2OsFBRvZSC4/qLa9rzJxFOpZ830=";
-      };
-    });
-    ryzenadj = pkgs.ryzenadj.overrideAttrs (oldAttrs: {
-      src = pkgs.fetchFromGitHub {
-        owner = "FlyGoat";
-        repo = "RyzenAdj";
-        rev = "7aeb2f4869ee52ac161ee4cb4871e29113487885";
-        sha256 = "sha256-KE2dbGv4V3+ibyxJ/DHNnBOGzjAcZbGrC3cVGNDsTTQ=";
-      };
-    });
-  in {
-    # Undervolting
-    boot.kernelModules = [ "ryzen-smu" ];
+  config = lib.mkIf config.lumpiasty.acerUndervolt {
+    boot.kernelModules = [ "ryzen_smu" ];
+    boot.extraModulePackages = [ config.boot.kernelPackages.ryzen-smu ];
 
-    boot.extraModulePackages = [
-      ryzen-smu
-    ];
-
-    environment.systemPackages = [
-      ryzenadj
-      ryzen-smu
-    ];
+    environment.systemPackages = [ pkgs.ryzenadj ];
 
+    # CoreCtrl for GPU/iGPU tuning + amdgpu overdrive for clock/voltage
+    # control on the 780M iGPU. Orthogonal to CPU undervolt but lives
+    # naturally in the same module.
     programs.corectrl.enable = true;
     hardware.amdgpu.overdrive.enable = true;
-  });
-}
+  };
+}