From 751694df63b34946e1a79d379eac8c35ba40eed1 Mon Sep 17 00:00:00 2001
From: Azat Bahawi <azat@bahawi.net>
Date: Fri, 16 Sep 2022 15:13:19 +0300
Subject: 2022-09-16

---
 configurations/default.nix        | 54 +++++++++++++++++++--------------------
 configurations/melian/default.nix | 52 ++++++++-----------------------------
 2 files changed, 37 insertions(+), 69 deletions(-)

(limited to 'configurations')

diff --git a/configurations/default.nix b/configurations/default.nix
index 124baec..40c133f 100644
--- a/configurations/default.nix
+++ b/configurations/default.nix
@@ -13,11 +13,37 @@ with lib; let
       modules =
         attrValues inputs.self.nixosModules
         ++ modules
-        ++ [(import configuration)];
+        ++ optional (configuration != null) (import configuration);
       specialArgs = {inherit inputs lib this;};
     });
 in
   mapAttrs' mkConfiguration {
+    test-headless = {
+      modules = with inputs; [
+        "${nixpkgs}/nixos/modules/profiles/qemu-guest.nix"
+        nixpkgs.nixosModules.notDetected
+      ];
+      this = {
+        hostname = "test-headless";
+        system = "x86_64-linux";
+        isHeadless = true;
+        isHeadful = false;
+      };
+    };
+
+    test-headful = {
+      modules = with inputs; [
+        "${nixpkgs}/nixos/modules/profiles/qemu-guest.nix"
+        nixpkgs.nixosModules.notDetected
+      ];
+      this = {
+        hostname = "test-headful";
+        system = "x86_64-linux";
+        isHeadless = false;
+        isHeadful = true;
+      };
+    };
+
     melian.modules = with inputs; [
       nixos-hardware.nixosModules.common-pc-laptop-ssd
       nixos-hardware.nixosModules.lenovo-thinkpad-t480
@@ -44,30 +70,4 @@ in
       nixos-hardware.nixosModules.common-pc-hdd
       nixpkgs.nixosModules.notDetected
     ];
-
-    test-headless = {
-      modules = with inputs; [
-        "${nixpkgs}/nixos/modules/profiles/qemu-guest.nix"
-        nixpkgs.nixosModules.notDetected
-      ];
-      this = {
-        hostname = "test-headless";
-        system = "x86_64-linux";
-        isHeadless = true;
-        isHeadful = false;
-      };
-    };
-
-    test-headful = {
-      modules = with inputs; [
-        "${nixpkgs}/nixos/modules/profiles/qemu-guest.nix"
-        nixpkgs.nixosModules.notDetected
-      ];
-      this = {
-        hostname = "test-headful";
-        system = "x86_64-linux";
-        isHeadless = false;
-        isHeadful = true;
-      };
-    };
   }
diff --git a/configurations/melian/default.nix b/configurations/melian/default.nix
index 08cbc8c..0aca218 100644
--- a/configurations/melian/default.nix
+++ b/configurations/melian/default.nix
@@ -66,15 +66,12 @@ with lib; {
   };
 
   boot = {
-    kernelPackages = mkForce pkgs.linuxPackages_xanmod_latest;
-
-    # Speeding Wi-Fi a bit.
+    # Speeding up Wi-Fi a bit.
     extraModprobeConfig = ''
       options iwlwifi 11n_disable=1
     '';
 
     initrd = {
-      kernelModules = [];
       availableKernelModules = ["ahci" "nvme" "sd_mod" "usb_storage" "usbhid" "xhci_pci"];
 
       luks.devices."root" = {
@@ -83,7 +80,6 @@ with lib; {
         bypassWorkqueues = true;
       };
     };
-    kernelModules = ["kvm-intel"];
 
     loader = {
       efi.canTouchEfiVariables = true;
@@ -95,19 +91,10 @@ with lib; {
     };
   };
 
-  hardware = {
-    trackpoint = {
-      enable = true;
-      speed = 500;
-      sensitivity = 250;
-    };
-
-    opengl.extraPackages = with pkgs; [
-      intel-media-driver
-      libvdpau-va-gl
-      vaapiIntel
-      vaapiVdpau
-    ];
+  hardware.trackpoint = {
+    enable = true;
+    speed = 500;
+    sensitivity = 250;
   };
 
   powerManagement = let
@@ -127,31 +114,9 @@ with lib; {
   };
 
   services = {
-    # No need for this anymore but it kept just in case.
-    # tlp = {
-    #   enable = true;
-    #   settings = {
-    #     START_CHARGE_THRESH_BAT0 = 75;
-    #     STOP_CHARGE_THRESH_BAT0 = 80;
-    #     RESTORE_THRESHOLDS_ON_BAT = 1;
-    #   };
-    # };
-
-    throttled.enable = mkForce false;
-
     thinkfan = {
       enable = true;
 
-      # Old-style configuration should be nullified because it does not support
-      # hwmon search and appends to valid configuration resulting in conflicts
-      # and crash. I probably should make a PR to remove what was introduced[1]
-      # before.
-      #
-      # [1]: https://github.com/NixOS/nixpkgs/commit/02b872310d6a6503639f5a71a14f00441f961bc9
-      sensors = mkForce null;
-      fans = mkForce null;
-      levels = mkForce null;
-
       settings = {
         sensors = [
           {
@@ -161,10 +126,13 @@ with lib; {
           }
         ];
         fans = [{tpacpi = "/proc/acpi/ibm/fan";}];
-        levels = [["level auto" 0 50] ["level disengaged" 50 32767]];
+        levels = [
+          ["level auto" 0 50]
+          ["level disengaged" 50 32767]
+        ];
       };
     };
 
-    xserver.videoDrivers = ["intel" "modesetting"];
+    # xserver.videoDrivers = ["intel" "modesetting"];
   };
 }
-- 
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