Replace `riley` namespace with `custom` namespace

machines/sif/configuration.nix

@@ -34,14 +34,23 @@
 
 	system.stateVersion = "21.11";
 
-	riley = {
-		gui = false;
+	# Custom modules defined by myself.
+	custom = {
+
+    	gui.enable = false;
+
 		kak = {
 			enable  = true;
-			nix = true;
+			ide.nix = true;
 		};
+
+		net.interfaces = [
+    		"eth0"
+		];
+		
 	};
 
+
 	users.users."riley" = {
 		isNormalUser = true;
 		extraGroups = [ "wheel" ];

machines/thor/configuration.nix

@@ -7,8 +7,11 @@
         ../../modules
     ];
 
-	riley = {
-		gui = true;
+    custom = {
+        gui = {
+            enable = true;
+            theme = (import ../../colors.nix).dark;
+        };
         kak = {
 
             enable = true;

modules/gui/clipboard.nix

@@ -1,17 +1,20 @@
-{ config, lib, pkgs, ... }:
+# This is a simple module that does not define its own options.
+# Rather, it just looks at the `custom.gui.enable` option to
+# determine if it needs to add anything.
 
-let scripts = (import ../../scripts/clip.nix {
+{ pkgs, lib, config, ... }:
+
+let gui = config.custom.gui;
+
+    scripts = (import ../../scripts/clip.nix {
         inherit pkgs;
     });
 
-in (lib.mkIf (config.riley.gui) {
+in lib.mkIf (gui.enable) {
 
     # Add some shell scripts that abstract away the
     # horrible reality that the clipboard is managed by
     # the display server.
-	users.users."riley".packages =
-    	with scripts; [
-        	c p
-    	];
+	users.users."riley".packages = with scripts; [ c p ];
 	
-})
+}

modules/gui/default.nix

@@ -1,4 +1,13 @@
-{ pkgs, config, lib, ... }:
+{ pkgs, lib, config, ... }:
+
+let gui = config.custom.gui;
+
+	# Clipboard wrapper scripts
+    clip = (import ../../scripts/clip.nix {
+        inherit pkgs;
+    });
+
+in
 
 with lib; {
 
@@ -7,21 +16,33 @@ with lib; {
 		./wm
 		
 		./pulseaudio.nix
-		./clipboard.nix
 		./statusbar.nix
 		./terminal.nix
 
+		./theme.nix
+
 	];
 
-	options.riley.gui = mkEnableOption "gui applications and window manager";
+ 	options.custom.gui = {
 
-	config = mkIf config.riley.gui {
+		# Use a nested enable option, to allow extension of this option
+		# namespace later on.
+    	enable = mkEnableOption "gui applications and window manager";
 
-    	# Graphical applications
-    	users.users."riley".packages = with pkgs; [
+	};
+	
+	config = mkIf (gui.enable) {
+
+    	# Import some applications I use on all my graphical systems
+    	users.users."riley".packages = (with pkgs; [
+
+        	# My browser
     		google-chrome
+
+    		# Telegram client
     		tdesktop
-    	];
+
+    	]) ++ (with clip; [ c p ]); # Add clipboard scripts
     	
     };
 }

modules/gui/pulseaudio.nix

@@ -1,10 +1,21 @@
-{ lib, config, pkgs, ... }:
+{ pkgs, lib, config, ... }:
+
+let gui = config.custom.gui; in
+
+with lib; {
+
+	# Define pulseaudio toggle under the `audio` option set.
+ 	options.custom.gui.audio.pulseaudio = mkEnableOption "PulseAudio sound server";
+
+    config = mkIf (gui.audio.pulseaudio) {
         
-(lib.mkIf (config.riley.gui) {
     	sound.enable = true;
     	hardware.pulseaudio.enable = true;
 
     	users.users."riley".packages = with pkgs; [
     		pavucontrol
     	];
-})
+    	
+    };
+
+}

modules/gui/statusbar.nix

@@ -1,6 +1,6 @@
 { pkgs, config, lib, ... }:
 
-(lib.mkIf (config.riley.gui && false) {
+(lib.mkIf (config.custom.gui.enable && false) {
 	home-manager.users."riley" = {
     	services.polybar = {
         	enable = true;

modules/gui/terminal.nix

@@ -1,10 +1,15 @@
+# Module that adds my terminal emulator of choice to my environment.
+
 { pkgs, lib, config, ... }:
 
-with lib; (mkIf config.riley.gui {
-	home-manager.users."riley" = {
+let gui = config.custom.gui; in
 
-		# Kitty lets me use cool ligatures
-    	programs.kitty = {
+with lib; mkIf (gui.enable) {
+    
+	home-manager.users."riley".programs.kitty = {
+
+    	# Use kitty because it supports cool ligatures and
+    	# has nice scripting capabilities.
 		enable = true;
 
 		font = {
@@ -12,7 +17,7 @@ with lib; (mkIf config.riley.gui {
 			size = 11;
 		};
 		
-			settings = with config.riley.theme.hex; {
+		settings = with gui.theme.hex; {
 
 			bold_font = "Fira Code Medium";
 			
@@ -40,5 +45,4 @@ with lib; (mkIf config.riley.gui {
 		};
 	};
 
-	};
-})
+}

modules/gui/theme.nix

@@ -0,0 +1,58 @@
+# Defines the global color theme option.
+
+{ lib, ... }:
+
+with lib; with types;
+
+# Define the type in a let binding to prevent too much rightward
+# drift in the option configuration.
+let themeType =
+
+    let # Named colors are colors like "red" or "black".
+    	named = submodule {
+            options = {
+                normal = mkOption { type = str; };
+                bright = mkOption { type = str; };
+                pastel = mkOption { type = str; };
+            };
+        };
+
+        # Special colors are more abstract, for example
+        # "foreground".
+        special = submodule {
+            options = {
+                primary = mkOption { type = str; };
+                normal = mkOption { type = str; };
+                slight = mkOption { type = str; };
+            };
+        };
+
+    in submodule {
+        options = {
+            foreground = mkOption { type = special; };
+            background = mkOption { type = special; };
+            grayscales = mkOption { type = listOf str; };
+            red        = mkOption { type = named; };
+            green      = mkOption { type = named; };
+            blue       = mkOption { type = named; };
+            yellow     = mkOption { type = named; };
+            purple     = mkOption { type = named; };
+            cyan       = mkOption { type = named; };
+            pink       = mkOption { type = named; };
+            orange     = mkOption { type = named; };
+            misc       = mkOption { type = attrsOf str; };
+            hex        = mkOption { type = themeType; };
+        };
+    };
+
+in {
+
+	options.custom.gui.theme = mkOption {
+		type = themeType;
+		description = ''
+			Color theme used across the installation for various
+			GUI elements and terminal colors.
+		'';
+	};
+
+}

modules/gui/wm/default.nix

@@ -32,7 +32,7 @@ let scripts     = (import ./scripts.nix { inherit pkgs; });
 	});
 in
 
-with lib; (mkIf config.riley.gui {
+with lib; (mkIf config.custom.gui.enable {
     
 	services.xserver = {
 		enable = true;

modules/kak/default.nix

@@ -2,8 +2,8 @@
 
 with pkgs.kakouneUtils;
 
-let cfg   = config.riley.kak;
-    theme = config.riley.theme;
+let cfg   = config.custom.kak;
+    theme = config.custom.gui.theme;
     kak-crosshairs = buildKakounePlugin (rec {
         name = "kak-crosshairs";
         src = (pkgs.fetchFromGitHub {
@@ -17,7 +17,7 @@ in
 
 with lib; {
 
-    options.riley.kak = {
+    options.custom.kak = {
 
         enable = (mkEnableOption "kakoune editor") // { default = true; };