added stateVersion to settings + wine in dev module

configuration.nix

@@ -1,17 +1,20 @@
-{ config, pkgs, lib, ... }: {
+{ config, pkgs, lib, ... }:
+let
+    settings = import ./settings.nix;
+in
+{
     imports = [
-    # Include the results of the hardware scan.
-    ./hardware-configuration.nix
-    ./nix-settings.nix
+        ./hardware-configuration.nix # Include the results of the hardware scan.
+        ./nix-settings.nix  # nix related config
         ./users
         ./.luks-swap.nix
-    ./fonts.nix
-    ./extra
-    ./core
-    ./dev
-    ./games
-    ./hardware
-    ./system
+        ./fonts.nix         # system wide font settings
+        ./extra             # extra packages
+        ./core              # core system components
+        ./dev               # development stuff
+        ./games             # games
+        ./hardware          # hardware specific settings
+        ./system            # system components such as kernel
     ];
 
     # This value determines the NixOS release from which the default
@@ -20,7 +23,7 @@
     # this value at the release version of the first install of this system.
     # Before changing this value read the documentation for this option
     # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
-  system.stateVersion = "23.11"; # Did you read the comment?
+    system.stateVersion = settings.stateVersion; # Did you read the comment?
 
     hardware.opengl.enable = true;
 
@@ -52,9 +55,6 @@
   # Configure console keymap
   console.keyMap = "de";
 
-  # Enable touchpad support (enabled default in most desktopManager).
-  # services.xserver.libinput.enable = true;
-
   # List packages installed in system profile. To search, run:
   # $ nix search wget
   environment.systemPackages = (with pkgs; [
@@ -91,27 +91,8 @@
 
     # SCSI driver
     sg3_utils
-
-    wineWowPackages.stable
-    winetricks
   ]);
 
-  # Some programs need SUID wrappers, can be configured further or are
-  # started in user sessions.
-  # programs.mtr.enable = true;
-  # programs.gnupg.agent = {
-  #   enable = true;
-  #   enableSSHSupport = true;
-  # };
-
-  # List services that you want to enable:
-
-  # Enable the OpenSSH daemon.
-  # services.openssh.enable = true;
-
-  # Or disable the firewall altogether.
-  # networking.firewall.enable = false;
-
   environment.sessionVariables = rec {
     # rust
     CARGO_TERM_COLOR = "always";

dev/default.nix

@@ -10,5 +10,6 @@ in
     ++ lib.optionals settings.dev.latex [ ./latex.nix ]
     ++ lib.optionals settings.dev.dotnet [ ./dotnet.nix ]
     ++ lib.optionals settings.dev.python3.enable [ ./python3.nix ]
-    ++ lib.optionals settings.virtualisation.waydroid [ ./waydroid.nix ];
+    ++ lib.optionals settings.virtualisation.waydroid [ ./waydroid.nix ]
+    ++ lib.optionals settings.virtualisation.wine.enable [ ./wine.nix ];
 }

dev/wine.nix

@@ -0,0 +1,31 @@
+{ pkgs, lib, config, ... }:
+let
+    settings = import ./../settings.nix;
+in
+{
+    config = lib.mkMerge [
+        # optionally enable native wine for wayland
+        (lib.mkIf settings.virtualisation.wine.wayland {
+            environment.systemPackages = (with pkgs; [
+                # native wayland support (unstable)
+                wineWowPackages.waylandFull
+            ]);
+        })
+
+        # if wayland is off, use package for Xorg
+        (lib.mkIf (!settings.virtualisation.wine.wayland) {
+            environment.systemPackages = (with pkgs; [
+                # support both 32- and 64-bit applications
+                wineWowPackages.stagingFull
+            ]);
+        })
+
+        # winetricks
+        (lib.mkIf settings.virtualisation.wine.winetricks {
+            environment.systemPackages = (with pkgs; [
+                # winetricks (works for all versions of wine)
+                winetricks
+            ]);
+        })
+    ];
+}

settings.nix

@@ -1,4 +1,7 @@
-with import <nixpkgs> {}; {
+with import <nixpkgs> {};
+{
+    stateVersion = "23.11";
+
     hardware = {
         # support for GPUs
         amdgpu = true;
@@ -42,6 +45,11 @@ with import <nixpkgs> {}; {
             virt-manager = true;
         };
         waydroid = false;
+        wine = {
+            enable = true;
+            wayland = false;
+            winetricks = true;
+        };
     };
     dev = {
         platformio = true;