{
  description = "Nomarchy - An opinionated NixOS configuration with Hyprland";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    nixpkgs-stable.url = "github:NixOS/nixpkgs/nixos-24.11";

    hyprland.url = "github:hyprwm/Hyprland";

    home-manager = {
      url = "github:nix-community/home-manager";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    # Secrets management
    agenix = {
      url = "github:ryantm/agenix";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    # Hardware quirks database
    nixos-hardware.url = "github:NixOS/nixos-hardware";
  };

  outputs = {
    self,
    nixpkgs,
    nixpkgs-stable,
    hyprland,
    home-manager,
    agenix,
    nixos-hardware,
    ...
  } @ inputs: let
    lib = nixpkgs.lib;
    supportedSystems = ["x86_64-linux" "aarch64-linux"];
    forAllSystems = nixpkgs.lib.genAttrs supportedSystems;

    # Import helper functions
    mkHost = import ./lib/mkHost.nix {inherit inputs lib;};

    # Default configuration options
    defaultConfig = {
      username = "user";
      hostname = "nomarchy";
      timezone = "UTC";
      locale = "en_US.UTF-8";
      keyboardLayouts = ["us"];
      keyboardVariants = [""];

      # Features (opinionated defaults, user can disable)
      enableSyncthing = true;
      enableMullvad = false;
      enablePrinting = true;
      enableBluetooth = true;

      # Performance (security-conscious defaults)
      enableMitigationsOff = false; # Opt-in only

      # Boot
      bootloader = "systemd-boot"; # or "limine"
      enablePlymouth = false; # Boot splash

      # Theme
      theme = "classical";
    };
  in {
    # NixOS configurations
    nixosConfigurations = {
      # Example configuration with systemd-boot (default)
      example = mkHost {
        system = "x86_64-linux";
        config = defaultConfig // {
          hostname = "nomarchy";
        };
        extraModules = [
          # Minimal test hardware config
          ({...}: {
            fileSystems."/" = {
              device = "/dev/disk/by-label/nixos";
              fsType = "ext4";
            };
          })
        ];
      };

      # Example configuration with Limine bootloader
      example-limine = mkHost {
        system = "x86_64-linux";
        config = defaultConfig // {
          hostname = "nomarchy-limine";
          bootloader = "limine";
          enablePlymouth = true;
        };
        extraModules = [
          ({...}: {
            fileSystems."/" = {
              device = "/dev/disk/by-label/nixos";
              fsType = "ext4";
            };
          })
        ];
      };

      # ISO installer configuration
      installer = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        specialArgs = {inherit inputs;};
        modules = [
          ./iso/default.nix
        ];
      };
    };

    # Flake apps
    apps = forAllSystems (system: {
      # Main installer app: nix run github:blu/nomarchy
      default = {
        type = "app";
        program = "${self.packages.${system}.nomarchy-install}/bin/nomarchy-install";
      };

      # Interactive installer
      install = {
        type = "app";
        program = "${self.packages.${system}.nomarchy-install}/bin/nomarchy-install";
      };
    });

    # Packages
    packages = forAllSystems (system: let
      pkgs = nixpkgs.legacyPackages.${system};
    in {
      # Installer script
      nomarchy-install = pkgs.writeShellScriptBin "nomarchy-install" (builtins.readFile ./installer/install.sh);

      # ISO image
      iso = self.nixosConfigurations.installer.config.system.build.isoImage;

      default = self.packages.${system}.nomarchy-install;
    });

    # NixOS modules for users who want to import individual pieces
    nixosModules = {
      default = import ./modules;
      hyprland = import ./modules/desktop/hyprland.nix;
      theme = import ./themes/theme.nix;
      performance = import ./modules/performance;
    };

    # Home-manager modules
    homeManagerModules = {
      default = import ./modules/home;
    };

    # Templates for users to bootstrap their own config
    templates = {
      default = {
        path = ./templates/default;
        description = "Basic nomarchy configuration";
      };
    };

    # Export lib functions for users
    lib = {
      inherit mkHost;
    };

    # Development shell
    devShells = forAllSystems (system: let
      pkgs = nixpkgs.legacyPackages.${system};
    in {
      default = pkgs.mkShell {
        buildInputs = with pkgs; [
          nil # Nix LSP
          alejandra # Nix formatter
          nixpkgs-fmt
        ];
      };
    });
  };
}