Initial commit: Nomarchy NixOS configuration

An opinionated NixOS configuration with Hyprland, featuring:

- Modular flake-based architecture
- Parameterized user configuration (username, timezone, locale, etc.)
- Classical/antiquity theme with Thomas Cole wallpapers
- Full Hyprland setup with waybar, rofi, swaync
- Custom utility scripts (screenshots, screen recording, WiFi QR)
- Neovim with LSP support
- Interactive installer for existing NixOS systems
- ISO builder for fresh installations

Flake outputs:
- nixosConfigurations.example - Test configuration
- nixosConfigurations.installer - ISO installer
- packages.iso - Bootable ISO image
- apps.default - Interactive installer
- lib.mkHost - Host builder function
- templates.default - Starter template

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

lib/mkHost.nix

@@ -0,0 +1,92 @@
+# Helper function to create a NixOS host configuration
+{inputs, lib}: {
+  system,
+  config,
+  extraModules ? [],
+}: let
+  pkgs = import inputs.nixpkgs {
+    inherit system;
+    config.allowUnfree = true;
+  };
+
+  pkgs-stable = import inputs.nixpkgs-stable {
+    inherit system;
+    config.allowUnfree = true;
+  };
+in
+  inputs.nixpkgs.lib.nixosSystem {
+    inherit system;
+
+    specialArgs = {
+      inherit inputs pkgs-stable;
+      nomarchyConfig = config;
+    };
+
+    modules =
+      [
+        # Core system modules
+        ../modules/core
+        ../modules/desktop
+        ../modules/services
+        ../modules/programs
+        ../modules/performance
+
+        # Secrets management
+        inputs.agenix.nixosModules.default
+
+        # Home-manager integration
+        inputs.home-manager.nixosModules.home-manager
+        {
+          home-manager = {
+            useGlobalPkgs = true;
+            useUserPackages = true;
+            extraSpecialArgs = {
+              inherit inputs pkgs-stable;
+              nomarchyConfig = config;
+            };
+            users.${config.username} = import ../modules/home;
+          };
+        }
+
+        # Theme
+        ../themes/theme.nix
+
+        # Dynamic configuration based on user settings
+        ({...}: {
+          # Networking
+          networking.hostName = config.hostname;
+
+          # Locale and timezone
+          time.timeZone = config.timezone;
+          i18n.defaultLocale = config.locale;
+          i18n.extraLocaleSettings = let
+            locale = config.locale;
+          in {
+            LC_ADDRESS = locale;
+            LC_IDENTIFICATION = locale;
+            LC_MEASUREMENT = locale;
+            LC_MONETARY = locale;
+            LC_NAME = locale;
+            LC_NUMERIC = locale;
+            LC_PAPER = locale;
+            LC_TELEPHONE = locale;
+            LC_TIME = locale;
+          };
+
+          # User account
+          users.users.${config.username} = {
+            isNormalUser = true;
+            description = config.username;
+            extraGroups = ["networkmanager" "wheel" "adbusers" "video" "audio"];
+            shell = pkgs.zsh;
+          };
+
+          # Enable flakes
+          nix.settings.experimental-features = ["nix-command" "flakes"];
+
+          # State version
+          system.stateVersion = "24.11";
+        })
+      ]
+      ++ extraModules;
+  }