feat(wsl): add initial WSL configuration

Author: onnovalkering

configurations/nixos/nixos.nix

@@ -1,7 +1,4 @@
 { pkgs, hostName, ... }:
-let
-  hostId = builtins.substring 0 8 (builtins.hashString "sha256" hostName);
-in
 {
   nix.settings.experimental-features = [
     "nix-command"
@@ -29,7 +26,6 @@ in
 
   # Configure networking.
   networking = {
-    inherit hostId;
     inherit hostName;
     firewall.enable = true;
     nftables.enable = true;

configurations/nixos/services/incus.nix

@@ -8,6 +8,8 @@
     package = pkgs-unstable.incus;
   };
 
+  users.users.onno.extraGroups = [ "incus-admin" ];
+
   networking.firewall = {
     trustedInterfaces = [
       "incusbr0"

configurations/wsl/wsl.nix

@@ -0,0 +1,47 @@
+{ pkgs, hostName, ... }:
+{
+  nix.settings.experimental-features = [
+    "nix-command"
+    "flakes"
+  ];
+  nixpkgs.hostPlatform = "x86_64-linux";
+  system.stateVersion = "25.11";
+
+  # WSL-specific settings.
+  wsl = {
+    enable = true;
+    defaultUser = "onno";
+  };
+
+  # Configure time and i18n.
+  time.timeZone = "Europe/Amsterdam";
+  i18n.defaultLocale = "en_US.UTF-8";
+
+  # Configure networking.
+  networking = {
+    inherit hostName;
+  };
+
+  # Configure security.
+  security = {
+    sudo = {
+      execWheelOnly = true;
+      wheelNeedsPassword = false;
+    };
+  };
+
+  # Enable automatic garbage collection.
+  nix.gc = {
+    automatic = true;
+    dates = "Sat 22:00";
+    options = "--delete-older-than 30d";
+  };
+
+  # Packages to be installed in system profile.
+  environment = with pkgs; {
+    systemPackages = [
+      git
+      vim
+    ];
+  };
+}

flake.lock

@@ -26,6 +26,11 @@
       inputs.nixpkgs.follows = "nixpkgs-darwin";
     };
 
+    nixos-wsl = {
+      url = "github:nix-community/NixOS-WSL/release-25.11";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
     pre-commit-hooks = {
       url = "github:cachix/git-hooks.nix";
       inputs.nixpkgs.follows = "nixpkgs";
@@ -39,6 +44,7 @@
       disko,
       home-manager,
       nix-darwin,
+      nixos-wsl,
       nixpkgs,
       nixpkgs-unstable,
       pre-commit-hooks,
@@ -53,7 +59,7 @@
       darwinConfigurations =
         let
           system = "aarch64-darwin";
-          pkgs-unstable = nixpkgs-unstable.legacyPackages.${system}.pkgs;
+          pkgs-unstable = nixpkgs-unstable.legacyPackages.${system};
         in
         {
           macbook-pro = nix-darwin.lib.darwinSystem {
@@ -77,7 +83,7 @@
       nixosConfigurations =
         let
           system = "x86_64-linux";
-          pkgs-unstable = nixpkgs-unstable.legacyPackages.${system}.pkgs;
+          pkgs-unstable = nixpkgs-unstable.legacyPackages.${system};
         in
         {
           server-vesta = nixpkgs.lib.nixosSystem {
@@ -99,20 +105,16 @@
             ];
           };
 
-          server-vulcan = nixpkgs.lib.nixosSystem {
+          wsl-nixos = nixpkgs.lib.nixosSystem {
             inherit system;
             specialArgs = {
-              hostName = "server-vulcan";
+              hostName = "wsl-nixos";
               inherit catppuccin-hm;
               inherit pkgs-unstable;
             };
             modules = [
-              disko.nixosModules.disko
-              ./hardware/intel-aipc-devkit.nix
-              ./configurations/nixos/nixos.nix
-              ./configurations/nixos/services/openssh.nix
-              ./configurations/nixos/services/incus.nix
-              ./configurations/nixos/services/tailscale.nix
+              nixos-wsl.nixosModules.default
+              ./configurations/wsl/wsl.nix
               home-manager.nixosModules.home-manager
               ./home/config.nix
             ];

flake.nix

@@ -43,7 +43,6 @@ in
     # Linux-specific configuration.
     (lib.mkIf isLinux {
       extraGroups = [
-        "incus-admin"
         "wheel"
       ];
       home = "/home/onno";

hardware/intel-aipc-devkit.nix

@@ -41,6 +41,7 @@ _: {
 
       ignores = [
         ".DS_Store"
+        ".agents"
         ".env"
       ];
     };