Setup WSL Host

nix/flake.nix

@@ -0,0 +1,37 @@
+{
+  description = "Top level flake";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
+    nixos-wsl.url = "github:nix-community/NixOS-WSL/main";
+    home-manager.url = "github:nix-community/home-manager";
+    home-manager.inputs.nixpkgs.follows = "nixpkgs";
+  };
+
+  outputs = inputs@{ nixpkgs, ... }:
+    let
+      systems = [ "x86_64-linux" ];
+      hosts = [{
+        name = "wsl-kumatani";
+        isWSL = true;
+      }];
+    in {
+      nixosConfigurations = builtins.listToAttrs (map (host: {
+        name = host.name;
+        value = nixpkgs.lib.nixosSystem {
+          specialArgs = {
+            inherit inputs outputs;
+            meta = { hostname = host.name; };
+          };
+          system = "x86_64-linux";
+          modules =
+            [ ./configuration.nix home-manager.nixosModules.home-manager ]
+            ++ (if host.isWSL then [
+              ./wsl.nix
+              nixos-wsl.nixosModules.default
+            ] else
+              [ ]);
+        };
+      }) hosts);
+    };
+}