Switch to Niri WM

helpers.nix

@@ -23,8 +23,12 @@ with inputs.nixpkgs.lib; {
     extraModules =
       hostModules # Host-specific modules.
       ++ optionals (docker == true) [./suites/server/docker] # Enable docker if required.
+      ++ optionals (suite == "desktop") [niri.nixosModules.niri]
       ++ (filesystem.listFilesRecursive ./modules); # Custom modules.
 
+    # specialArgs & extraSpecialArgs.
+    args = {inherit inputs hostname secrets;};
+
     # nixpkgs config.
     pkgs = import nixpkgs {
       inherit system;
@@ -42,6 +46,7 @@ with inputs.nixpkgs.lib; {
       # Import my overlay.
       overlays = [
         (import ./overlay.nix {inherit inputs system;})
+        niri.overlays.niri
       ];
     };
 
@@ -62,19 +67,11 @@ with inputs.nixpkgs.lib; {
     {
       nixosConfigurations.${hostname} = nixosSystem {
         inherit system pkgs;
-
-        specialArgs = {
-          # Make some variables accesible to modules.
-          inherit
-            inputs
-            hostname
-            secrets
-            ;
-        };
+        specialArgs = args;
 
         modules =
           [
-            nixvim.nixosModules.nixvim # Neovim.
+            stylix.nixosModules.stylix # Universal styling.
             lanzaboote.nixosModules.lanzaboote # Secure boot.
             sops-nix.nixosModules.sops # Secrets management.
 
@@ -88,7 +85,17 @@ with inputs.nixpkgs.lib; {
                 useGlobalPkgs = true;
                 useUserPackages = true;
                 backupFileExtension = "backup";
-                users.fern = ./home.nix;
+                extraSpecialArgs = args;
+                users.fern = {
+                  home.username = "fern"; # My username.
+                  home.homeDirectory = "/home/fern"; # My home directory.
+                  home.stateVersion = "25.05"; # NixOS/home manager version (must match).
+                  programs.home-manager.enable = true; # Enable home manager:
+                  imports = [
+                    nixvim.homeModules.nixvim # Neovim.
+                    ./suites/${suite}/home.nix # Suite-specific config.
+                  ];
+                };
               };
             }
           ]