add den pattern

hosts/balrog/default.nix

@@ -1,7 +1,3 @@
-# Edit this configuration file to define what should be installed on
-# your system. Help is available in the configuration.nix(5) man page, on
-# https://search.nixos.org/options and in the NixOS manual (`nixos-help`).
-
 { config
 , lib
 , pkgs
@@ -10,32 +6,24 @@
 
 {
   imports = [
-    # Include the results of the hardware scan.
     ./hardware-configuration.nix
-    ../../modules/home-manager.nix
-    ../../modules/common.nix
-    ../../modules/users.nix
-    ../../modules/locales.nix
-    ../../modules/services.nix
-    ../../modules/programs.nix
-    ../../modules/docker.nix
-    ../../modules/printing.nix
-    ../../modules/bambu-studio-flatpak.nix
-    ../../modules/arduino-ide.nix
-    ../../modules/devenv.nix
-    ../../modules/vlc.nix
-    ../../modules/btop.nix
-    ../../modules/lazygit.nix
-    #    ../../modules/bitwarden.nix
   ];
 
+  features.modules = {
+    core.enable = true;
+    development.enable = true;
+    hardware.enable = true;
+    multimedia.enable = true;
+    system.enable = true;
+  };
+
   boot.kernelPackages = pkgs.linuxPackages_latest;
 
   boot.loader.systemd-boot.enable = false;
   boot.loader = {
     efi = {
       canTouchEfiVariables = true;
-      efiSysMountPoint = "/boot/efi"; # ← use the same mount point here.
+      efiSysMountPoint = "/boot/efi";
     };
     grub = {
       efiSupport = true;
@@ -76,5 +64,5 @@
     }
   ];
 
-  system.stateVersion = "25.11"; # Did you read the comment?
+  system.stateVersion = "25.11";
 }

hosts/frodo/default.nix

@@ -1,26 +1,19 @@
-# Edit this configuration file to define what should be installed on
-# your system.  Help is available in the configuration.nix(5) man page
-# and in the NixOS manual (accessible by running ‘nixos-help’).
-
 { config, pkgs, ... }:
 
 {
   imports = [
-    # Include the results of the hardware scan.
     ./hardware-configuration.nix
-    ../../modules/common.nix
-    ../../modules/users.nix
-    ../../modules/locales.nix
-    ../../modules/services.nix
-    ../../modules/programs.nix
   ];
 
-  # Bootloader.
+  features.modules = {
+    core.enable = true;
+  };
+
   boot.loader.grub.enable = true;
   boot.loader.grub.device = "/dev/vda";
   boot.loader.grub.useOSProber = true;
 
-  networking.hostName = "frodo"; # Define your hostname.
+  networking.hostName = "frodo";
 
-  system.stateVersion = "25.11"; # Did you read the comment?
+  system.stateVersion = "25.11";
 }

hosts/gandalf/default.nix

@@ -3,37 +3,22 @@
 {
   imports = [
     ./hardware-configuration.nix
-    ../../modules/home-manager.nix
-    ../../modules/common.nix
-    ../../modules/users.nix
-    ../../modules/locales.nix
-    ../../modules/services.nix
-    ../../modules/programs.nix
-    ../../modules/gaming.nix
-    ../../modules/obs-studio.nix
-    ../../modules/garbage-collection.nix
-    ../../modules/printing.nix
-    ../../modules/docker.nix
-    ../../modules/matrix.nix
-    ../../modules/kdenlive.nix
-    ../../modules/audacity.nix
-    ../../modules/ollama.nix
-    ../../modules/wireguard.nix
-    ../../modules/qbittorrent.nix
-    ../../modules/gimp.nix
-    ../../modules/openscad.nix
-    ../../modules/bambu-studio-flatpak.nix
-    ../../modules/arduino-ide.nix
-    ../../modules/bitwarden.nix
-    ../../modules/vlc.nix
-    ../../modules/devenv.nix
-    ../../modules/btop.nix
-    ../../modules/discord.nix
-    ../../modules/lazygit.nix
-    ../../modules/yazi.nix
     ./mtp-fix.nix
   ];
 
+  features.modules = {
+    core.enable = true;
+    ai.enable = true;
+    desktop.enable = true;
+    development.enable = true;
+    gaming.enable = true;
+    hardware.enable = true;
+    multimedia.enable = true;
+    networking.enable = true;
+    security.enable = true;
+    system.enable = true;
+  };
+
   boot.kernelPackages = pkgs.linuxPackages_latest;
 
   boot.loader.systemd-boot.enable = true;
@@ -69,5 +54,5 @@
 
   virtualisation.libvirtd.enable = true;
 
-  system.stateVersion = "25.11"; # Did you read the comment?
+  system.stateVersion = "25.11";
 }

hosts/legolas/default.nix

@@ -3,14 +3,13 @@
 {
   imports = [
     ./hardware-configuration.nix
-    ../../modules/common.nix
-    ../../modules/users.nix
-    ../../modules/locales.nix
-    ../../modules/services.nix
-    ../../modules/programs.nix
-    ../../modules/gaming.nix
   ];
 
+  features.modules = {
+    core.enable = true;
+    gaming.enable = true;
+  };
+
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
 
@@ -34,5 +33,5 @@
 
   virtualisation.libvirtd.enable = true;
 
-  system.stateVersion = "25.11"; # Did you read the comment?
+  system.stateVersion = "25.11";
 }

hosts/work/default.nix

@@ -3,34 +3,20 @@
 {
   imports = [
     ./hardware-configuration.nix
-    ../../modules/home-manager.nix
-    ../../modules/common.nix
-    ../../modules/users.nix
-    ../../modules/locales.nix
-    ../../modules/services.nix
-    ../../modules/programs.nix
-    ../../modules/garbage-collection.nix
-    ../../modules/printing.nix
-    ../../modules/docker.nix
-    ../../modules/teams-for-linux.nix
-    ../../modules/azure-data-studio.nix
-    ../../modules/filezilla.nix
-    ../../modules/wireguard.nix
-    ../../modules/remmina.nix
-    ../../modules/postman.nix
-    ../../modules/gimp.nix
-    ../../modules/jq.nix
-    ../../modules/enova.nix
-    ../../modules/devenv.nix
-    ../../modules/bitwarden.nix
-    ../../modules/btop.nix
-    ../../modules/vlc.nix
-    ../../modules/lazygit.nix
-    ../../modules/yazi.nix
-    ../../modules/bubblewrap.nix
-    ../../modules/socat.nix
   ];
 
+  features.modules = {
+    core.enable = true;
+    desktop.enable = true;
+    development.enable = true;
+    hardware.enable = true;
+    multimedia.enable = true;
+    networking.enable = true;
+    security.enable = true;
+    system.enable = true;
+    work.enable = true;
+  };
+
   boot.kernelPackages = pkgs.linuxPackages_latest;
 
   boot.loader.systemd-boot.enable = true;
@@ -92,5 +78,5 @@
     "149.210.174.226" = [ "kindertelefoon" ];
   };
 
-  system.stateVersion = "25.11"; # Did you read the comment?
+  system.stateVersion = "25.11";
 }

modules/ai/default.nix

@@ -0,0 +1,6 @@
+{ lib, ... }: {
+  imports = lib.mapAttrsToList
+    (file: _: ./. + "/${file}")
+    (lib.filterAttrs (file: _: lib.hasSuffix ".nix" file && file != "default.nix")
+      (builtins.readDir ./.));
+}

modules/ai/ollama.nix

@@ -0,0 +1,13 @@
+{ config, lib, pkgsUnstable, ... }:
+
+let
+  dirModules = config.features.modules.ai or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.ollama.enable or true)) {
+    services.ollama = {
+      enable = true;
+      package = pkgsUnstable.ollama-cuda;
+    };
+  };
+}

modules/arduino-ide.nix

@@ -1,7 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  environment.systemPackages = with pkgs; [
-    arduino-ide
-  ];
-}

modules/audacity.nix

@@ -1,7 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  environment.systemPackages = with pkgs; [
-    audacity
-  ];
-}

modules/azure-data-studio.nix

@@ -1,7 +0,0 @@
-{ pkgs, ... }:
-
-{
-  environment.systemPackages = with pkgs; [
-    azuredatastudio
-  ];
-}

modules/bambu-studio-flatpak.nix

@@ -1,9 +0,0 @@
-{ pkgs, ... }:
-
-{
-  services.flatpak.update.onActivation = true;
-  services.flatpak.enable = true;
-  services.flatpak.packages = [
-    "com.bambulab.BambuStudio"
-  ];
-}

modules/bitwarden.nix

@@ -1,11 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  nixpkgs.config.permittedInsecurePackages = [
-    "electron-39.8.10"
-  ];
-
-  environment.systemPackages = with pkgs; [
-    bitwarden-desktop
-  ];
-}

modules/btop.nix

@@ -1,7 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  environment.systemPackages = with pkgs; [
-    btop
-  ];
-}

modules/bubblewrap.nix

@@ -1,8 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  environment.systemPackages = with pkgs; [
-    bubblewrap
-  ];
-}
-

modules/common.nix

@@ -1,24 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  nixpkgs.config.allowUnfree = true;
-
-  nix.settings.experimental-features = [
-    "nix-command"
-    "flakes"
-  ];
-
-  users.defaultUserShell = pkgs.zsh;
-
-  environment.systemPackages = with pkgs; [
-    chromium
-    gnumake
-    jetbrains-toolbox
-    fastfetch
-    jq
-  ];
-
-  security.rtkit.enable = true;
-
-  system.stateVersion = "25.11";
-}

modules/core/common.nix

@@ -0,0 +1,29 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.core or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.common.enable or true)) {
+    nixpkgs.config.allowUnfree = true;
+
+    nix.settings.experimental-features = [
+      "nix-command"
+      "flakes"
+    ];
+
+    users.defaultUserShell = pkgs.zsh;
+
+    environment.systemPackages = with pkgs; [
+      chromium
+      gnumake
+      jetbrains-toolbox
+      fastfetch
+      jq
+    ];
+
+    security.rtkit.enable = true;
+
+    system.stateVersion = "25.11";
+  };
+}

modules/core/default.nix

@@ -0,0 +1,6 @@
+{ lib, ... }: {
+  imports = lib.mapAttrsToList
+    (file: _: ./. + "/${file}")
+    (lib.filterAttrs (file: _: lib.hasSuffix ".nix" file && file != "default.nix")
+      (builtins.readDir ./.));
+}

modules/core/home-manager.nix

@@ -0,0 +1,18 @@
+{ config, lib, pkgs, pkgsUnstable, ... }:
+
+let
+  dirModules = config.features.modules.core or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.home-manager.enable or true)) {
+    home-manager = {
+      useGlobalPkgs = true;
+      useUserPackages = true;
+      extraSpecialArgs = {
+        inherit pkgsUnstable;
+      };
+
+      users.avravels = import ../home/home.nix;
+    };
+  };
+}

modules/core/locales.nix

@@ -0,0 +1,23 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.core or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.locales.enable or true)) {
+    time.timeZone = "Europe/Amsterdam";
+
+    i18n.defaultLocale = "en_US.UTF-8";
+    i18n.extraLocaleSettings = {
+      LC_ADDRESS = "nl_NL.UTF-8";
+      LC_IDENTIFICATION = "nl_NL.UTF-8";
+      LC_MEASUREMENT = "nl_NL.UTF-8";
+      LC_MONETARY = "nl_NL.UTF-8";
+      LC_NAME = "nl_NL.UTF-8";
+      LC_NUMERIC = "nl_NL.UTF-8";
+      LC_PAPER = "nl_NL.UTF-8";
+      LC_TELEPHONE = "nl_NL.UTF-8";
+      LC_TIME = "nl_NL.UTF-8";
+    };
+  };
+}

modules/core/programs.nix

@@ -0,0 +1,17 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.core or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.programs.enable or true)) {
+    programs = {
+      zsh.enable = true;
+
+      hyprland.enable = true;
+      hyprland.xwayland.enable = true;
+
+      virt-manager.enable = true;
+    };
+  };
+}

modules/core/services.nix

@@ -0,0 +1,28 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.core or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.services.enable or true)) {
+    services.openssh.enable = true;
+
+    services = {
+      displayManager.gdm.enable = true;
+      desktopManager.gnome.enable = true;
+
+      xserver = {
+        enable = true;
+        xkb.layout = "us";
+        xkb.variant = "";
+      };
+
+      pulseaudio.enable = false;
+
+      pipewire.enable = true;
+      pipewire.alsa.enable = true;
+      pipewire.alsa.support32Bit = true;
+      pipewire.pulse.enable = true;
+    };
+  };
+}

modules/core/users.nix

@@ -0,0 +1,27 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.core or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.users.enable or true)) {
+    users.users.avravels = {
+      initialPassword = "welcome";
+      isNormalUser = true;
+      description = "Armel van Ravels";
+      extraGroups = [
+        "networkmanager"
+        "wheel"
+        "libvirtd"
+        "dialout"
+      ];
+      packages = with pkgs; [
+        home-manager
+        spotify
+        proton-vpn
+        fzf
+      ];
+      shell = pkgs.zsh;
+    };
+  };
+}

modules/desktop/default.nix

@@ -0,0 +1,6 @@
+{ lib, ... }: {
+  imports = lib.mapAttrsToList
+    (file: _: ./. + "/${file}")
+    (lib.filterAttrs (file: _: lib.hasSuffix ".nix" file && file != "default.nix")
+      (builtins.readDir ./.));
+}

modules/desktop/discord.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.desktop or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.discord.enable or true)) {
+    environment.systemPackages = with pkgs; [
+      discord
+    ];
+  };
+}

modules/desktop/matrix.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.desktop or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.matrix.enable or true)) {
+    environment.systemPackages = with pkgs; [
+      element-desktop
+    ];
+  };
+}

modules/desktop/teams-for-linux.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.desktop or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.teams-for-linux.enable or true)) {
+    environment.systemPackages = with pkgs; [
+      teams-for-linux
+    ];
+  };
+}

modules/development/azure-data-studio.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.development or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.azure-data-studio.enable or true)) {
+    environment.systemPackages = with pkgs; [
+      azuredatastudio
+    ];
+  };
+}

modules/development/default.nix

@@ -0,0 +1,6 @@
+{ lib, ... }: {
+  imports = lib.mapAttrsToList
+    (file: _: ./. + "/${file}")
+    (lib.filterAttrs (file: _: lib.hasSuffix ".nix" file && file != "default.nix")
+      (builtins.readDir ./.));
+}

modules/development/devenv.nix

@@ -0,0 +1,17 @@
+{ config, lib, pkgsUnstable, ... }:
+
+let
+  dirModules = config.features.modules.development or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.devenv.enable or true)) {
+    environment.systemPackages = with pkgsUnstable; [
+      devenv
+    ];
+
+    nix.settings.trusted-users = [
+      "root"
+      "avravels"
+    ];
+  };
+}

modules/development/docker.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.development or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.docker.enable or true)) {
+    virtualisation.docker.enable = true;
+
+    users.users.avravels.extraGroups = [ "docker" ];
+  };
+}

modules/development/jq.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.development or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.jq.enable or true)) {
+    environment.systemPackages = with pkgs; [
+      jq
+    ];
+  };
+}

modules/development/lazygit.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.development or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.lazygit.enable or true)) {
+    environment.systemPackages = with pkgs; [
+      lazygit
+    ];
+  };
+}

modules/development/postman.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.development or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.postman.enable or true)) {
+    environment.systemPackages = with pkgs; [
+      postman
+    ];
+  };
+}

modules/devenv.nix

@@ -1,12 +0,0 @@
-{ config, pkgsUnstable, ... }:
-
-{
-  environment.systemPackages = with pkgsUnstable; [
-    devenv
-  ];
-
-  nix.settings.trusted-users = [
-    "root"
-    "avravels"
-  ];
-}

modules/discord.nix

@@ -1,8 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  environment.systemPackages = with pkgs; [
-    discord
-  ];
-}
-

modules/docker.nix

@@ -1,7 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  virtualisation.docker.enable = true;
-
-  users.users.avravels.extraGroups = [ "docker" ];
-}

modules/enova.nix

@@ -1,15 +0,0 @@
-{ pkgs, ... }:
-
-{
-  services.dnsmasq = {
-    enable = true;
-
-    settings = {
-      server = [
-        "1.1.1.1"
-        "8.8.8.8"
-      ];
-      address = [ "/.enova.local/127.0.0.1" ];
-    };
-  };
-}

modules/features/default.nix

@@ -0,0 +1,18 @@
+{ lib, ... }:
+let
+  modulesDir = ../.;
+  moduleDirs = builtins.readDir modulesDir;
+
+  excludeDirs = [ "home" "features" ];
+
+  dirEntries = lib.filterAttrs
+    (name: type: type == "directory" && !builtins.elem name excludeDirs)
+    moduleDirs;
+in
+{
+  options.features.modules = lib.mkOption {
+    type = lib.types.attrs;
+    default = { };
+    description = "Auto-generated feature module options tree";
+  };
+}

modules/filezilla.nix

@@ -1,7 +0,0 @@
-{ pkgs, ... }:
-
-{
-  environment.systemPackages = with pkgs; [
-    filezilla
-  ];
-}

modules/gaming.nix

@@ -1,19 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  programs.steam = {
-    enable = true;
-    remotePlay.openFirewall = true;
-    localNetworkGameTransfers.openFirewall = true;
-    package = pkgs.steam.override {
-      extraEnv = {
-        MANGOHUD = "1";
-        WINE_VK_VULKAN_ONLY = "1";
-      };
-    };
-  };
-
-  environment.systemPackages = [
-    pkgs.mangohud
-  ];
-}

modules/gaming/default.nix

@@ -0,0 +1,6 @@
+{ lib, ... }: {
+  imports = lib.mapAttrsToList
+    (file: _: ./. + "/${file}")
+    (lib.filterAttrs (file: _: lib.hasSuffix ".nix" file && file != "default.nix")
+      (builtins.readDir ./.));
+}

modules/gaming/gaming.nix

@@ -0,0 +1,24 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.gaming or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.gaming.enable or true)) {
+    programs.steam = {
+      enable = true;
+      remotePlay.openFirewall = true;
+      localNetworkGameTransfers.openFirewall = true;
+      package = pkgs.steam.override {
+        extraEnv = {
+          MANGOHUD = "1";
+          WINE_VK_VULKAN_ONLY = "1";
+        };
+      };
+    };
+
+    environment.systemPackages = [
+      pkgs.mangohud
+    ];
+  };
+}

modules/garbage-collection.nix

@@ -1,12 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  nix = {
-    settings.auto-optimise-store = true;
-    gc = {
-      automatic = true;
-      dates = "weekly";
-      options = "--delete-older-than 7d";
-    };
-  };
-}

modules/gimp.nix

@@ -1,7 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  environment.systemPackages = with pkgs; [
-    gimp
-  ];
-}

modules/hardware/arduino-ide.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.hardware or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.arduino-ide.enable or true)) {
+    environment.systemPackages = with pkgs; [
+      arduino-ide
+    ];
+  };
+}

modules/hardware/bambu-studio-flatpak.nix

@@ -0,0 +1,14 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.hardware or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.bambu-studio-flatpak.enable or true)) {
+    services.flatpak.update.onActivation = true;
+    services.flatpak.enable = true;
+    services.flatpak.packages = [
+      "com.bambulab.BambuStudio"
+    ];
+  };
+}

modules/hardware/default.nix

@@ -0,0 +1,6 @@
+{ lib, ... }: {
+  imports = lib.mapAttrsToList
+    (file: _: ./. + "/${file}")
+    (lib.filterAttrs (file: _: lib.hasSuffix ".nix" file && file != "default.nix")
+      (builtins.readDir ./.));
+}

modules/hardware/openscad.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.hardware or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.openscad.enable or true)) {
+    environment.systemPackages = with pkgs; [
+      openscad
+    ];
+  };
+}

modules/hardware/printing.nix

@@ -0,0 +1,47 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.hardware or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.printing.enable or true)) {
+    environment.systemPackages = with pkgs; [
+      cnijfilter2
+    ];
+
+    services.printing = {
+      enable = true;
+      drivers = [ pkgs.cnijfilter2 ];
+    };
+
+    services.avahi = {
+      enable = true;
+      nssmdns4 = true;
+      openFirewall = true;
+    };
+
+    hardware.printers = {
+      ensurePrinters = [
+        {
+          name = "CanonTS3100";
+          location = "Home";
+          deviceUri = "dnssd://Canon%20TS3100%20series._ipp._tcp.local/?uuid=00000000-0000-1000-8000-0018271a7e44";
+          model = "canonts3100.ppd";
+          ppdOptions = {
+            PageSize = "A4";
+          };
+        }
+      ];
+
+      ensureDefaultPrinter = "CanonTS3100";
+    };
+
+    # for samba
+    networking.hosts = {
+      "192.168.68.60" = [
+        "2C2919000000.local"
+        "2C2919000000"
+      ];
+    };
+  };
+}

modules/home-manager.nix

@@ -1,13 +0,0 @@
-{ pkgs, pkgsUnstable, ... }:
-
-{
-  home-manager = {
-    useGlobalPkgs = true;
-    useUserPackages = true;
-    extraSpecialArgs = {
-      inherit pkgsUnstable;
-    };
-
-    users.avravels = import home/home.nix;
-  };
-}

modules/jq.nix

@@ -1,7 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  environment.systemPackages = with pkgs; [
-    jq
-  ];
-}

modules/kdenlive.nix

@@ -1,7 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  environment.systemPackages = with pkgs; [
-    kdePackages.kdenlive
-  ];
-}

modules/lazygit.nix

@@ -1,7 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  environment.systemPackages = with pkgs; [
-    lazygit
-  ];
-}

modules/locales.nix

@@ -1,18 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  time.timeZone = "Europe/Amsterdam";
-
-  i18n.defaultLocale = "en_US.UTF-8";
-  i18n.extraLocaleSettings = {
-    LC_ADDRESS = "nl_NL.UTF-8";
-    LC_IDENTIFICATION = "nl_NL.UTF-8";
-    LC_MEASUREMENT = "nl_NL.UTF-8";
-    LC_MONETARY = "nl_NL.UTF-8";
-    LC_NAME = "nl_NL.UTF-8";
-    LC_NUMERIC = "nl_NL.UTF-8";
-    LC_PAPER = "nl_NL.UTF-8";
-    LC_TELEPHONE = "nl_NL.UTF-8";
-    LC_TIME = "nl_NL.UTF-8";
-  };
-}

modules/matrix.nix

@@ -1,7 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  environment.systemPackages = with pkgs; [
-    element-desktop
-  ];
-}

modules/multimedia/audacity.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.multimedia or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.audacity.enable or true)) {
+    environment.systemPackages = with pkgs; [
+      audacity
+    ];
+  };
+}

modules/multimedia/default.nix

@@ -0,0 +1,6 @@
+{ lib, ... }: {
+  imports = lib.mapAttrsToList
+    (file: _: ./. + "/${file}")
+    (lib.filterAttrs (file: _: lib.hasSuffix ".nix" file && file != "default.nix")
+      (builtins.readDir ./.));
+}

modules/multimedia/gimp.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.multimedia or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.gimp.enable or true)) {
+    environment.systemPackages = with pkgs; [
+      gimp
+    ];
+  };
+}

modules/multimedia/kdenlive.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.multimedia or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.kdenlive.enable or true)) {
+    environment.systemPackages = with pkgs; [
+      kdePackages.kdenlive
+    ];
+  };
+}

modules/multimedia/obs-studio.nix

@@ -0,0 +1,15 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.multimedia or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.obs-studio.enable or true)) {
+    programs.obs-studio = {
+      enable = true;
+      package = pkgs.obs-studio.override {
+        cudaSupport = true;
+      };
+    };
+  };
+}

modules/multimedia/vlc.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.multimedia or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.vlc.enable or true)) {
+    environment.systemPackages = with pkgs; [
+      vlc
+    ];
+  };
+}

modules/networking/default.nix

@@ -0,0 +1,6 @@
+{ lib, ... }: {
+  imports = lib.mapAttrsToList
+    (file: _: ./. + "/${file}")
+    (lib.filterAttrs (file: _: lib.hasSuffix ".nix" file && file != "default.nix")
+      (builtins.readDir ./.));
+}

modules/networking/filezilla.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.networking or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.filezilla.enable or true)) {
+    environment.systemPackages = with pkgs; [
+      filezilla
+    ];
+  };
+}

modules/networking/qbittorrent.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.networking or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.qbittorrent.enable or true)) {
+    environment.systemPackages = with pkgs; [
+      qbittorrent
+    ];
+  };
+}

modules/networking/remmina.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.networking or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.remmina.enable or true)) {
+    environment.systemPackages = with pkgs; [
+      remmina
+    ];
+  };
+}

modules/networking/socat.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.networking or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.socat.enable or true)) {
+    environment.systemPackages = with pkgs; [
+      socat
+    ];
+  };
+}

modules/networking/wireguard.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.networking or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.wireguard.enable or true)) {
+    environment.systemPackages = with pkgs; [
+      wireguard-tools
+    ];
+  };
+}

modules/obs-studio.nix

@@ -1,10 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  programs.obs-studio = {
-    enable = true;
-    package = pkgs.obs-studio.override {
-      cudaSupport = true;
-    };
-  };
-}

modules/ollama.nix

@@ -1,8 +0,0 @@
-{ pkgsUnstable, ... }:
-
-{
-  services.ollama = {
-    enable = true;
-    package = pkgsUnstable.ollama-cuda;
-  };
-}

modules/openscad.nix

@@ -1,7 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  environment.systemPackages = with pkgs; [
-    openscad
-  ];
-}

modules/postman.nix

@@ -1,7 +0,0 @@
-{ pkgs, ... }:
-
-{
-  environment.systemPackages = with pkgs; [
-    postman
-  ];
-}

modules/printing.nix

@@ -1,42 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  environment.systemPackages = with pkgs; [
-    cnijfilter2
-  ];
-
-  services.printing = {
-    enable = true;
-    drivers = [ pkgs.cnijfilter2 ];
-  };
-
-  services.avahi = {
-    enable = true;
-    nssmdns4 = true;
-    openFirewall = true;
-  };
-
-  hardware.printers = {
-    ensurePrinters = [
-      {
-        name = "CanonTS3100";
-        location = "Home";
-        deviceUri = "dnssd://Canon%20TS3100%20series._ipp._tcp.local/?uuid=00000000-0000-1000-8000-0018271a7e44";
-        model = "canonts3100.ppd";
-        ppdOptions = {
-          PageSize = "A4";
-        };
-      }
-    ];
-
-    ensureDefaultPrinter = "CanonTS3100";
-  };
-
-  # for samba
-  networking.hosts = {
-    "192.168.68.60" = [
-      "2C2919000000.local"
-      "2C2919000000"
-    ];
-  };
-}

modules/programs.nix

@@ -1,12 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  programs = {
-    zsh.enable = true;
-
-    hyprland.enable = true;
-    hyprland.xwayland.enable = true;
-
-    virt-manager.enable = true;
-  };
-}

modules/qbittorrent.nix

@@ -1,7 +0,0 @@
-{ pkgs, ... }:
-
-{
-  environment.systemPackages = with pkgs; [
-    qbittorrent
-  ];
-}

modules/remmina.nix

@@ -1,7 +0,0 @@
-{ pkgs, ... }:
-
-{
-  environment.systemPackages = with pkgs; [
-    remmina
-  ];
-}

modules/security/bitwarden.nix

@@ -0,0 +1,16 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.security or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.bitwarden.enable or true)) {
+    nixpkgs.config.permittedInsecurePackages = [
+      "electron-39.8.10"
+    ];
+
+    environment.systemPackages = with pkgs; [
+      bitwarden-desktop
+    ];
+  };
+}

modules/security/default.nix

@@ -0,0 +1,6 @@
+{ lib, ... }: {
+  imports = lib.mapAttrsToList
+    (file: _: ./. + "/${file}")
+    (lib.filterAttrs (file: _: lib.hasSuffix ".nix" file && file != "default.nix")
+      (builtins.readDir ./.));
+}

modules/services.nix

@@ -1,23 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  services.openssh.enable = true;
-
-  services = {
-    displayManager.gdm.enable = true;
-    desktopManager.gnome.enable = true;
-
-    xserver = {
-      enable = true;
-      xkb.layout = "us";
-      xkb.variant = "";
-    };
-
-    pulseaudio.enable = false;
-
-    pipewire.enable = true;
-    pipewire.alsa.enable = true;
-    pipewire.alsa.support32Bit = true;
-    pipewire.pulse.enable = true;
-  };
-}

modules/socat.nix

@@ -1,8 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  environment.systemPackages = with pkgs; [
-    socat
-  ];
-}
-

modules/system/btop.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.system or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.btop.enable or true)) {
+    environment.systemPackages = with pkgs; [
+      btop
+    ];
+  };
+}

modules/system/bubblewrap.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.system or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.bubblewrap.enable or true)) {
+    environment.systemPackages = with pkgs; [
+      bubblewrap
+    ];
+  };
+}

modules/system/default.nix

@@ -0,0 +1,6 @@
+{ lib, ... }: {
+  imports = lib.mapAttrsToList
+    (file: _: ./. + "/${file}")
+    (lib.filterAttrs (file: _: lib.hasSuffix ".nix" file && file != "default.nix")
+      (builtins.readDir ./.));
+}

modules/system/garbage-collection.nix

@@ -0,0 +1,17 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.system or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.garbage-collection.enable or true)) {
+    nix = {
+      settings.auto-optimise-store = true;
+      gc = {
+        automatic = true;
+        dates = "weekly";
+        options = "--delete-older-than 7d";
+      };
+    };
+  };
+}

modules/system/yazi.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.system or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.yazi.enable or true)) {
+    environment.systemPackages = with pkgs; [
+      yazi
+    ];
+  };
+}

modules/teams-for-linux.nix

@@ -1,7 +0,0 @@
-{ pkgs, ... }:
-
-{
-  environment.systemPackages = with pkgs; [
-    teams-for-linux
-  ];
-}

modules/users.nix

@@ -1,22 +0,0 @@
-{ config, pkgs, ... }:
-
-{
-  users.users.avravels = {
-    initialPassword = "welcome";
-    isNormalUser = true;
-    description = "Armel van Ravels";
-    extraGroups = [
-      "networkmanager"
-      "wheel"
-      "libvirtd"
-      "dialout"
-    ];
-    packages = with pkgs; [
-      home-manager
-      spotify
-      proton-vpn
-      fzf
-    ];
-    shell = pkgs.zsh;
-  };
-}

modules/vlc.nix

@@ -1,7 +0,0 @@
-{ pkgs, ... }:
-
-{
-  environment.systemPackages = with pkgs; [
-    vlc
-  ];
-}

modules/wireguard.nix

@@ -1,7 +0,0 @@
-{ pkgs, ... }:
-
-{
-  environment.systemPackages = with pkgs; [
-    wireguard-tools
-  ];
-}

modules/work/default.nix

@@ -0,0 +1,6 @@
+{ lib, ... }: {
+  imports = lib.mapAttrsToList
+    (file: _: ./. + "/${file}")
+    (lib.filterAttrs (file: _: lib.hasSuffix ".nix" file && file != "default.nix")
+      (builtins.readDir ./.));
+}

modules/work/enova.nix

@@ -0,0 +1,20 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.work or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.enova.enable or true)) {
+    services.dnsmasq = {
+      enable = true;
+
+      settings = {
+        server = [
+          "1.1.1.1"
+          "8.8.8.8"
+        ];
+        address = [ "/.enova.local/127.0.0.1" ];
+      };
+    };
+  };
+}

modules/yazi.nix

@@ -1,7 +0,0 @@
-{ pkgs, ... }:
-
-{
-  environment.systemPackages = with pkgs; [
-    yazi
-  ];
-}

outputs.nix

@@ -13,6 +13,21 @@ let
     config.allowUnfree = true;
   };
 
+  moduleNames = [
+    "ai"
+    "core"
+    "desktop"
+    "development"
+    "features"
+    "gaming"
+    "hardware"
+    "multimedia"
+    "networking"
+    "security"
+    "system"
+    "work"
+  ];
+
   mkHost =
     name:
     nixpkgs.lib.nixosSystem {
@@ -27,7 +42,7 @@ let
         nix-flatpak.nixosModules.nix-flatpak
         home-manager.nixosModules.home-manager
         ./hosts/${name}
-      ];
+      ] ++ (map (mod: ./modules/${mod}) moduleNames);
     };
 
 in