nix: exorcise all with <expr>; uses

home/x/cursor.nix

@@ -1,11 +1,16 @@
 { config, lib, pkgs, ... }:
 let
+  inherit (lib)
+    mkEnableOption
+    mkIf
+  ;
+
   cfg = config.my.home.x.cursor;
 in
 {
-  options.my.home.x.cursor.enable = (lib.mkEnableOption "X cursor") // { default = config.my.home.x.enable; };
+  options.my.home.x.cursor.enable = (mkEnableOption "X cursor") // { default = config.my.home.x.enable; };
 
-  config = lib.mkIf cfg.enable {
+  config = mkIf cfg.enable {
     xsession.pointerCursor = {
       package = pkgs.capitaine-cursors;
       name = "capitaine-cursors";

home/x/default.nix

@@ -1,4 +1,9 @@
 { config, lib, pkgs, ... }:
+let
+  inherit (lib)
+    mkEnableOption
+  ;
+in
 {
   imports = [
     ./cursor.nix
@@ -6,7 +11,7 @@
     ./i3bar.nix
   ];
 
-  options.my.home.x = with lib; {
+  options.my.home.x = {
     enable = mkEnableOption "X server configuration";
   };
 }

home/x/i3.nix

@@ -1,5 +1,10 @@
 { config, lib, pkgs, ... }:
 let
+  inherit (lib)
+    mkIf
+    mkOptionDefault
+  ;
+
   isEnabled = config.my.home.x.enable;
 
   myTerminal =
@@ -17,14 +22,12 @@ let
   i3Theme = config.my.theme.i3Theme;
 in
 {
-  config = lib.mkIf isEnabled {
+  config = mkIf isEnabled {
     my.home = {
       flameshot.enable = true;
     };
 
-    home.packages = with pkgs; [
-      betterlockscreen
-    ];
+    home.packages = [ pkgs.betterlockscreen ];
 
     xsession.windowManager.i3 = {
       enable = true;
@@ -77,7 +80,7 @@ in
           size = 8.0;
         };
 
-        keybindings = lib.mkOptionDefault {
+        keybindings = mkOptionDefault {
           "${modifier}+Shift+e" = ''mode "${logoutMode}"'';
           "${modifier}+i" = "exec emacsclient -c";
 
@@ -106,7 +109,7 @@ in
               "Return" = "mode default";
             };
           in
-            lib.mkOptionDefault {
+            mkOptionDefault {
               "${logoutMode}" = makeModeBindings {
                 "l" = "exec --no-startup-id i3-msg exit, mode default";
                 "s" = "exec --no-startup-id betterlockscreen --suspend, mode default";

home/x/i3bar.nix

@@ -1,11 +1,19 @@
 { config, lib, pkgs, ... }:
 let
+  inherit (lib)
+    lists
+    mkIf
+    mkOption
+    optional
+    types
+  ;
+
   isEnabled = config.my.home.x.enable;
   i3BarTheme = config.my.theme.i3BarTheme;
   cfg = config.my.home.x.i3bar;
 in
 {
-  options.my.home.x.i3bar = with lib; {
+  options.my.home.x.i3bar = {
     temperature.chip = mkOption {
       type = types.str;
       example = "coretemp-isa-*";
@@ -24,12 +32,14 @@ in
     };
   };
 
-  config = lib.mkIf isEnabled {
-    home.packages = with pkgs; [
-      iw # Used by `net` block
-      lm_sensors # Used by `temperature` block
-      font-awesome
-    ];
+  config = mkIf isEnabled {
+    home.packages = builtins.attrValues {
+      inherit (pkgs)
+        iw # Used by `net` block
+        lm_sensors # Used by `temperature` block
+        font-awesome
+      ;
+    };
 
     programs.i3status-rust = {
       enable = true;
@@ -79,7 +89,7 @@ in
               chip = cfg.temperature.chip;
               inputs = cfg.temperature.inputs;
             }
-          ] ++ (lib.lists.optionals ((builtins.length cfg.networking.throughput_interfaces) != 0)
+          ] ++ (lists.optionals ((builtins.length cfg.networking.throughput_interfaces) != 0)
             (map
               (interface:
                 {
@@ -105,11 +115,11 @@ in
               block = "sound";
               driver = "pulseaudio";
             }
-          ] ++ (lib.lists.optionals config.my.home.laptop.enable [
+          ] ++ (optional config.my.home.laptop.enable
             {
               block = "battery";
             }
-          ]) ++ [
+          ) ++ [
             # {
             #   block = "notify";
             # }