✨ Add tons of missing system, desktop and home modules

modules/nixos/system/audio/default.nix

@@ -0,0 +1,27 @@
+{
+  lib,
+  self,
+  config,
+  ...
+}: let
+  inherit (lib) mkEnableOption mkIf;
+  inherit (self) namespace;
+
+  cfg = config.${namespace}.system.audio;
+in {
+  options.${namespace}.system.audio = {
+    enable = mkEnableOption "system audio support.";
+  };
+
+  config = mkIf cfg.enable {
+    services.pulseaudio.enable = false;
+
+    security.rtkit.enable = true;
+    services.pipewire = {
+      enable = true;
+      alsa.enable = true;
+      alsa.support32Bit = true;
+      pulse.enable = true;
+    };
+  };
+}

modules/nixos/system/bluetooth/default.nix

@@ -0,0 +1,36 @@
+{
+  lib,
+  pkgs,
+  self,
+  config,
+  ...
+}: let
+  inherit (lib) mkEnableOption mkIf;
+  inherit (self) namespace;
+
+  cfg = config.${namespace}.system.bluetooth;
+in {
+  options.${namespace}.system.bluetooth = {
+    enable = mkEnableOption "bluetooth support.";
+  };
+
+  config = mkIf cfg.enable {
+    environment.systemPackages = with pkgs; [bluez];
+
+    hardware.bluetooth = {
+      enable = true;
+      powerOnBoot = true;
+      package = pkgs.bluez;
+
+      settings = {
+        General = {
+          ControllerMode = "dual";
+          FastConnectable = "true";
+          Experimental = "true";
+          KernelExperimental = "true";
+          Disable = "Handsfree";
+        };
+      };
+    };
+  };
+}

modules/nixos/system/fonts/default.nix

@@ -0,0 +1,28 @@
+{
+  lib,
+  pkgs,
+  self,
+  config,
+  ...
+}: let
+  inherit (lib) mkEnableOption mkIf mkOption;
+  inherit (self) namespace;
+
+  cfg = config.${namespace}.system.fonts;
+in {
+  options.${namespace}.system.fonts = with lib.types; {
+    enable = mkEnableOption "system font management";
+    fonts = mkOption {
+      type = listOf package;
+      default = with pkgs; [noto-fonts noto-fonts-cjk-sans noto-fonts-cjk-serif noto-fonts-emoji nerd-fonts.bigblue-terminal nerd-fonts.zed-mono monocraft];
+      example = [noto-fonts noto-fonts-emoji];
+      description = "Install additional font packages";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    environment.systemPackages = with pkgs; [font-manager];
+
+    fonts.packages = cfg.fonts;
+  };
+}

modules/nixos/system/locale/default.nix

@@ -0,0 +1,58 @@
+{
+  lib,
+  self,
+  config,
+  ...
+}: let
+  inherit (lib) mkEnableOption mkIf mkOption;
+  inherit (self) namespace;
+
+  cfg = config.${namespace}.system.locale;
+in {
+  options.${namespace}.system.locale = {
+    enable = mkEnableOption "system locale tweaks.";
+
+    language = mkOption {
+      type = lib.types.str;
+      default = "en_US";
+      example = "en_US";
+      description = "Sets the language for most text, doesn't include monetary or measurement settings";
+    };
+
+    country = mkOption {
+      type = lib.types.str;
+      default = "de_DE";
+      example = "de_DE";
+      description = "Sets the language used for monetary or measurement settings (USD vs Euro, etc...)";
+    };
+
+    keymap = mkOption {
+      type = lib.types.str;
+      default = "de";
+      example = "de";
+      description = "Sets the keymap to be used by the system";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    # Internationalisation properties.
+    i18n.defaultLocale = "${cfg.language}.UTF-8";
+    i18n.extraLocaleSettings = {
+      LC_ADDRESS = "${cfg.country}.UTF-8";
+      LC_IDENTIFICATION = "${cfg.country}.UTF-8";
+      LC_MEASUREMENT = "${cfg.country}.UTF-8";
+      LC_MONETARY = "${cfg.country}.UTF-8";
+      LC_NAME = "${cfg.country}.UTF-8";
+      LC_NUMERIC = "${cfg.country}.UTF-8";
+      LC_PAPER = "${cfg.country}.UTF-8";
+      LC_TELEPHONE = "${cfg.country}.UTF-8";
+      LC_TIME = "${cfg.country}.UTF-8";
+    };
+
+    # Set console keymap.
+    console.keyMap = cfg.keymap;
+    services.xserver = {
+      xkb.layout = cfg.keymap;
+    };
+  };
+}

modules/nixos/system/nix/default.nix

@@ -0,0 +1,50 @@
+{
+  lib,
+  pkgs,
+  self,
+  config,
+  ...
+}: let
+  inherit (lib) mkEnableOption mkIf;
+  inherit (self) namespace;
+
+  cfg = config.${namespace}.system.nix;
+in {
+  options.${namespace}.system.nix = {
+    enable = mkEnableOption "Nix configuration overrides.";
+    use-lix = mkEnableOption "Lix as an alternative to CppNix.";
+    use-nixld = mkEnableOption "the use of dynamically linked executables on nix based systems.";
+  };
+
+  config = mkIf cfg.enable {
+    nix = {
+      settings = {
+        auto-optimise-store = true;
+        builders-use-substitutes = true;
+        experimental-features = ["nix-command" "flakes"];
+        keep-derivations = true;
+        keep-outputs = true;
+        max-jobs = "auto";
+        warn-dirty = false;
+      };
+
+      # Garbage collection configuration.
+      gc = {
+        automatic = true;
+        dates = "daily";
+        options = "--delete-older-than 3d";
+      };
+
+      package = mkIf cfg.use-lix pkgs.lix; # Enable LIX
+    };
+
+    # Dynamic libraries for unpackaged programs
+    programs.nix-ld = mkIf cfg.use-nixld {
+      enable = true;
+      libraries = with pkgs; [
+        glibc
+        libcxx
+      ];
+    };
+  };
+}

modules/nixos/system/shell/default.nix

@@ -0,0 +1,25 @@
+{
+  lib,
+  pkgs,
+  self,
+  config,
+  ...
+}: let
+  inherit (lib) mkEnableOption mkIf types;
+  inherit (self) namespace;
+  inherit (self.lib) mkOpt;
+
+  cfg = config.${namespace}.system.shell;
+in {
+  options.${namespace}.system.shell = {
+    enable = mkEnableOption "custom user shells.";
+    installed = mkOpt types.listOf types.package [pkgs.fish] "List of shell packages to install";
+    default = mkOpt types.str "fish" "Set a custom shell as the default for all users.";
+  };
+
+  config = mkIf cfg.enable {
+    environment.shells = cfg.installed;
+    users.defaultUserShell = pkgs.${cfg.shell.type};
+    programs.${cfg.shell.type}.enable = true;
+  };
+}