refactor(nixos): inline module enable conditions

configs/nixos/modules/desktop/utilities/audio.nix

@@ -1,12 +1,9 @@
 { config, lib, ... }:
 # PipeWire as the desktop audio server.
-let
-  cfg = config.modules.desktop.utilities.audio; # NOLINT(let_order)
-in
 {
   options.modules.desktop.utilities.audio.enable = lib.mkEnableOption "the PipeWire audio server";
 
-  config = lib.mkIf cfg.enable {
+  config = lib.mkIf config.modules.desktop.utilities.audio.enable {
     # Realtime scheduling for the audio threads, so playback survives load.
     security.rtkit.enable = true;
 

configs/nixos/modules/desktop/utilities/clipboard.nix

@@ -6,7 +6,6 @@
 }:
 # Clipboard history: cliphist records every copy, picked back through rofi.
 let
-  cfg = config.modules.desktop.utilities.clipboard; # NOLINT(let_order)
   user = config.user.name;
 
   cliphist = "${pkgs.cliphist}/bin/cliphist";
@@ -28,7 +27,7 @@ in
   options.modules.desktop.utilities.clipboard.enable =
     lib.mkEnableOption "cliphist clipboard history";
 
-  config = lib.mkIf cfg.enable {
+  config = lib.mkIf config.modules.desktop.utilities.clipboard.enable {
     home-manager.users.${user} = {
       # wl-copy and wl-paste on PATH, so the shell can pipe into and out of the
       # clipboard.

configs/nixos/modules/desktop/utilities/osd.nix

@@ -6,14 +6,13 @@
 }:
 # SwayOSD: a transient on-screen popup for volume and brightness changes.
 let
-  cfg = config.modules.desktop.utilities.osd; # NOLINT(let_order)
   user = config.user.name;
 in
 {
   options.modules.desktop.utilities.osd.enable =
     lib.mkEnableOption "the SwayOSD volume and brightness popup";
 
-  config = lib.mkIf cfg.enable {
+  config = lib.mkIf config.modules.desktop.utilities.osd.enable {
     environment.systemPackages = [ pkgs.swayosd ];
 
     # The udev rule chgrps each backlight's brightness node to `video` and adds

configs/nixos/modules/desktop/utilities/recording.nix

@@ -6,7 +6,6 @@
 }:
 # Keybound screen recording: pick a region, then toggle a video-only capture.
 let
-  cfg = config.modules.desktop.utilities.recording; # NOLINT(let_order)
   user = config.user.name;
 
   slurp = "${pkgs.slurp}/bin/slurp";
@@ -44,7 +43,7 @@ in
   options.modules.desktop.utilities.recording.enable =
     lib.mkEnableOption "wf-recorder screen recording";
 
-  config = lib.mkIf cfg.enable {
+  config = lib.mkIf config.modules.desktop.utilities.recording.enable {
     home-manager.users.${user} = {
       # $mod is defined by the compositor config these binds share.
       wayland.windowManager.hyprland.settings.bind = [

configs/nixos/modules/desktop/utilities/screenshot.nix

@@ -7,7 +7,6 @@
 # Keyboard-driven screenshots copy to the clipboard before Satty opens for
 # annotation. Satty copies annotated screenshots when it saves them.
 let
-  cfg = config.modules.desktop.utilities.screenshot; # NOLINT(let_order)
   user = config.user.name;
 
   grimblast = "${pkgs.grimblast}/bin/grimblast";
@@ -37,7 +36,7 @@ in
   options.modules.desktop.utilities.screenshot.enable =
     lib.mkEnableOption "screenshots via grimblast and satty";
 
-  config = lib.mkIf cfg.enable {
+  config = lib.mkIf config.modules.desktop.utilities.screenshot.enable {
     home-manager.users.${user} = {
       # satty is a one-shot annotation surface, so float it rather than letting
       # it claim a tile in the layout.

configs/nixos/modules/desktop/utilities/theming.nix

@@ -6,7 +6,6 @@
 }:
 # Nord theming for the graphical layer, driven from one base16 scheme by Stylix.
 let
-  cfg = config.modules.desktop.utilities.theming; # NOLINT(let_order)
 
   # A single static Nord wallpaper, drawn as a vertical gradient across the
   # Polar Night shades so it needs no committed binary and no network fetch.
@@ -21,7 +20,7 @@ in
   options.modules.desktop.utilities.theming.enable =
     lib.mkEnableOption "Nord theming of the graphical layer via Stylix";
 
-  config = lib.mkIf cfg.enable {
+  config = lib.mkIf config.modules.desktop.utilities.theming.enable {
     stylix = {
       enable = true;
 

configs/nixos/modules/desktop/utilities/userdirs.nix

@@ -2,13 +2,12 @@
 # Declares the XDG user directories, so a tool that queries them lands in a
 # well-known folder a host can relocate from one place.
 let
-  cfg = config.modules.desktop.utilities.userdirs; # NOLINT(let_order)
   user = config.user.name;
 in
 {
   options.modules.desktop.utilities.userdirs.enable = lib.mkEnableOption "XDG user directories";
 
-  config = lib.mkIf cfg.enable {
+  config = lib.mkIf config.modules.desktop.utilities.userdirs.enable {
     # Write ~/.config/user-dirs.dirs from the option defaults.
     home-manager.users.${user}.xdg.userDirs.enable = true;
   };