add flake support

README.md

@@ -20,6 +20,29 @@ imports = [
 ];
 ```
 
+## Adding via nix flakes support
+
+There is also experimental flake support. In your `/etc/nixos/flake.nix` add the following:
+
+```nix
+{
+  description = "NixOS configuration with flakes";
+  inputs.nixos-hardware.url = github:NixOS/nixos-hardware/master;
+
+  outputs = { self, nixpkgs, nixos-hardware }: {
+    # replace <your-hostname> with your actual hostname
+    nixosConfigurations.<your-hostname> = nixpkgs.lib.nixosSystem {
+      # ...
+      modules = [
+        # ...
+        # add your model from this list: https://github.com/NixOS/nixos-hardware/blob/flakes/flake.nix
+        nixos-hardware.nixosModules.dell-xps-13-9380
+      ];
+    };
+  };
+}
+```
+
 ## List of Profiles
 
 See code for all available configurations.