Extract out more nix config files

nixos/boxes/foureighty.nix

@@ -1,4 +1,3 @@
-
 { config, pkgs, ... }:
 {
 
@@ -17,6 +16,7 @@
       "i915.enable_fbc=1"
       "i915.enable_psr=2"
       "i915.enable_rc6=7"
+      "mds=full"
     ];
     initrd.luks.devices = [
       {
@@ -36,43 +36,11 @@
     time.timeZone = "Europe/London";
 
     hardware.trackpoint.enable = true;
-
     services.fprintd.enable = true;
 
-    systemd.services.cpu-throttling = {
-      enable = true;
-      description = "CPU Throttling Fix";
-      documentation = [
-        "https://wiki.archlinux.org/index.php/Lenovo_ThinkPad_X1_Carbon_(Gen_6)#Power_management.2FThrottling_issues"
-      ];
-      path = [ pkgs.msr-tools ];
-      script = "wrmsr -a 0x1a2 0x3000000";
-      serviceConfig = {
-        Type = "oneshot";
-      };
-      wantedBy = [
-        "timers.target"
-      ];
-    };
-
-    systemd.timers.cpu-throttling = {
-      enable = true;
-      description = "CPU Throttling Fix";
-      documentation = [
-        "https://wiki.archlinux.org/index.php/Lenovo_ThinkPad_X1_Carbon_(Gen_6)#Power_management.2FThrottling_issues"
-      ];
-      timerConfig = {
-        OnActiveSec = 60;
-        OnUnitActiveSec = 60;
-        Unit = "cpu-throttling.service";
-      };
-      wantedBy = [
-        "timers.target"
-      ];
-    };
-
     imports = [
       /etc/nixos/hardware-configuration.nix
+      ../quirks/thinkpad-cpu-throttling.nix
       ../boot.nix
       ../common.nix
       ../gfx-intel.nix

nixos/common-hardware.nix

@@ -0,0 +1,26 @@
+{ config, pkgs, lib, ... }:
+{
+  sound.enable = true;
+  networking.networkmanager.enable = true;
+  hardware.enableRedistributableFirmware = true;
+  hardware.cpu.intel.updateMicrocode = true;
+  hardware.pulseaudio = {
+    enable = true;
+    package = pkgs.pulseaudioFull;
+    extraModules = [ pkgs.pulseaudio-modules-bt ];
+  };
+  hardware.u2f.enable = true;
+  hardware.brightnessctl.enable = true;
+  hardware.sane.enable = true;
+  hardware.bluetooth = {
+    enable = true;
+    package = pkgs.bluezFull;
+    extraConfig = ''
+            [General]
+            Enable=Source,Sink,Media,Socket
+    '';
+  };
+  powerManagement.cpuFreqGovernor = (lib.mkForce null);
+
+  hardware.nvidiaOptimus.disable = true;
+}

nixos/common.nix

@@ -1,4 +1,4 @@
-{ config, pkgs, lib , ... }:
+{ config, pkgs, ... }:
 
 let
   unstableTarball = fetchTarball https://github.com/NixOS/nixpkgs-channels/archive/nixos-unstable.tar.gz;
@@ -10,6 +10,7 @@ in
         ./vscode.nix
         ./syncthing.nix
         ./gsconnect.nix
+        ./common-hardware.nix
       ];
 
       nixpkgs.config = {
@@ -51,10 +52,16 @@ in
         tlp.enable = true;
         fstrim.enable = true;
 
+        physlock = {
+          enable = true;
+          allowAnyUser = true;
+        };
+
         printing = {
           enable = true;
           drivers = [ pkgs.epson-escpr pkgs.samsung-unified-linux-driver pkgs.splix ];
         };
+
         avahi = {
           enable = true;
           nssmdns = true;
@@ -83,35 +90,8 @@ in
         };
       };
 
-      security.pam.services.gdm.enableGnomeKeyring = true;
-
       fonts.fonts = [ pkgs.powerline-fonts ];
 
-      sound.enable = true;
-      networking.networkmanager.enable = true;
-      hardware.enableRedistributableFirmware = true;
-      hardware.cpu.intel.updateMicrocode = true;
-      hardware.pulseaudio = {
-        enable = true;
-        package = pkgs.pulseaudioFull;
-      };
-      hardware.u2f.enable = true;
-      hardware.brightnessctl.enable = true;
-      hardware.sane.enable = true;
-      hardware.bluetooth = {
-        enable = true;
-        package = pkgs.bluezFull;
-        powerOnBoot = true;
-      };
-      powerManagement.cpuFreqGovernor = (lib.mkForce null);
-
-      hardware.nvidiaOptimus.disable = true;
-
-      services.physlock = {
-        enable = true;
-        allowAnyUser = true;
-      };
-
       nix.gc.automatic = true;
       nix.autoOptimiseStore = true;
       nix.optimise.automatic = true;
@@ -120,4 +100,3 @@ in
       system.autoUpgrade.enable = true;
       system.stateVersion = "19.03";
     }
-

nixos/quirks/thinkpad-cpu-throttling.nix

@@ -0,0 +1,34 @@
+{ config, pkgs, ... }:
+{
+  systemd.services.cpu-throttling = {
+    enable = true;
+    description = "CPU Throttling Fix";
+    documentation = [
+      "https://wiki.archlinux.org/index.php/Lenovo_ThinkPad_X1_Carbon_(Gen_6)#Power_management.2FThrottling_issues"
+    ];
+    path = [ pkgs.msr-tools ];
+    script = "wrmsr -a 0x1a2 0x3000000";
+    serviceConfig = {
+      Type = "oneshot";
+    };
+    wantedBy = [
+      "timers.target"
+    ];
+  };
+
+  systemd.timers.cpu-throttling = {
+    enable = true;
+    description = "CPU Throttling Fix";
+    documentation = [
+      "https://wiki.archlinux.org/index.php/Lenovo_ThinkPad_X1_Carbon_(Gen_6)#Power_management.2FThrottling_issues"
+    ];
+    timerConfig = {
+      OnActiveSec = 60;
+      OnUnitActiveSec = 60;
+      Unit = "cpu-throttling.service";
+    };
+    wantedBy = [
+      "timers.target"
+    ];
+  };
+}