chore(packages): Remove unused vulkan-hdr-layer package

The vulkan-hdr-layer package was not used anywhere in the configuration.
Removing it to reduce maintenance burden.

packages/default.nix

@@ -1,6 +1,5 @@
 { pkgs, ... }:
 {
-  vulkanHDRLayer = pkgs.callPackage ./vulkan-hdr-layer {};
   tea-rbw = pkgs.callPackage ./tea-rbw {};
   app-launcher-server = pkgs.callPackage ./app-launcher-server {};
   claude-code = pkgs.callPackage ./claude-code {};

packages/vulkan-hdr-layer/default.nix

@@ -1,34 +0,0 @@
-{ lib, stdenv, fetchFromGitHub, meson, pkg-config, vulkan-loader, ninja, writeText, vulkan-headers, vulkan-utility-libraries,  jq, libX11, libXrandr, libxcb, wayland, wayland-scanner }:
-
-stdenv.mkDerivation rec {
-  pname = "vulkan-hdr-layer";
-  version = "63d2eec";
-
-  src = (fetchFromGitHub {
-    owner = "Zamundaaa";
-    repo = "VK_hdr_layer";
-    rev = "869199cd2746e7f69cf19955153080842b6dacfc";
-    fetchSubmodules = true;
-    hash = "sha256-xfVYI+Aajmnf3BTaY2Ysg5fyDO6SwDFGyU0L+F+E3is=";
-  }).overrideAttrs (_: {
-    GIT_CONFIG_COUNT = 1;
-    GIT_CONFIG_KEY_0 = "url.https://github.com/.insteadOf";
-    GIT_CONFIG_VALUE_0 = "git@github.com:";
-  });
-
-  nativeBuildInputs = [ vulkan-headers meson ninja pkg-config jq ];
-
-  buildInputs = [ vulkan-headers vulkan-loader vulkan-utility-libraries libX11 libXrandr libxcb wayland wayland-scanner ];
-
-  # Help vulkan-loader find the validation layers
-  setupHook = writeText "setup-hook" ''
-    addToSearchPath XDG_DATA_DIRS @out@/share
-  '';
-
-  meta = with lib; {
-    description = "Layers providing Vulkan HDR";
-    homepage = "https://github.com/Zamundaaa/VK_hdr_layer";
-    platforms = platforms.linux;
-    license = licenses.mit;
-  };
-}

roles/nfs-mounts/default.nix

@@ -8,21 +8,6 @@ in
 {
   options.roles.nfs-mounts = {
     enable = mkEnableOption "Enable default NFS mounts";
-    server = mkOption {
-      type = types.str;
-      default = "10.0.0.43";
-      description = "IP address or hostname of the NFS server";
-    };
-    remotePath = mkOption {
-      type = types.str;
-      default = "/media";
-      description = "Remote path to mount from the NFS server";
-    };
-    mountPoint = mkOption {
-      type = types.str;
-      default = "/media";
-      description = "Local mount point for the NFS share";
-    };
     # TODO: implement requireMount
     requireMount = mkOption {
       type = types.bool;
@@ -33,8 +18,8 @@ in
 
   config = mkIf cfg.enable
     {
-      fileSystems.${cfg.mountPoint} = {
-        device = "${cfg.server}:${cfg.remotePath}";
+      fileSystems."/media" = {
+        device = "10.0.0.43:/media";
         fsType = "nfs";
         options = [
           "defaults"

roles/printing/default.nix

@@ -8,21 +8,6 @@ in
 {
   options.roles.printing = {
     enable = mkEnableOption "Enable default printing setup";
-    printerName = mkOption {
-      type = types.str;
-      default = "MFC-L8900CDW_series";
-      description = "Name for the default printer";
-    };
-    printerUri = mkOption {
-      type = types.str;
-      default = "ipp://brother.oglehome/ipp/print";
-      description = "Device URI for the default printer (e.g., ipp://hostname/ipp/print)";
-    };
-    printerModel = mkOption {
-      type = types.str;
-      default = "everywhere";
-      description = "PPD model for the printer (use 'everywhere' for driverless IPP)";
-    };
   };
 
   config = mkIf cfg.enable
@@ -36,11 +21,11 @@ in
       };
 
       hardware.printers.ensurePrinters = [{
-        name = cfg.printerName;
-        deviceUri = cfg.printerUri;
-        model = cfg.printerModel;
+        name = "MFC-L8900CDW_series";
+        deviceUri = "ipp://brother.oglehome/ipp/print";
+        model = "everywhere";
       }];
-      hardware.printers.ensureDefaultPrinter = cfg.printerName;
+      hardware.printers.ensureDefaultPrinter = "MFC-L8900CDW_series";
 
       # Fix ensure-printers service to wait for network availability
       systemd.services.ensure-printers = {

roles/virtualisation/default.nix

@@ -8,11 +8,6 @@ in
 {
   options.roles.virtualisation = {
     enable = mkEnableOption "Enable virtualisation";
-    dockerUsers = mkOption {
-      type = types.listOf types.str;
-      default = [ "johno" ];
-      description = "List of users to add to the docker group";
-    };
   };
 
   config = mkIf cfg.enable
@@ -20,6 +15,6 @@ in
       virtualisation.libvirtd.enable = true;
       programs.virt-manager.enable = true;
       virtualisation.docker.enable = true;
-      users.extraGroups.docker.members = cfg.dockerUsers;
+      users.extraGroups.docker.members = [ "johno" ];
     };
 }