add flake example

README.md

@@ -44,3 +44,38 @@ Many of the extra settings can be added to or overridden.
 # not recommended for a global config for obvious reasons.
 nixowos.cli.yt-dlp.extraConfig = "--extract-audio";
 ```
+
+## Example flake
+
+```nix
+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+
+    nixowos = {
+      url = "git+https://codeberg.org/electria/nixowos";
+      flake = false;
+    };
+ };
+  outputs =
+    { nixpkgs, nixowos, ... }:
+    {
+      # NOTE: 'nixos' is the default hostname
+      nixosConfigurations.nixos = nixpkgs.lib.nixosSystem {
+        modules = [
+          ./configuration.nix
+          ./hardware-configuration.nix
+
+          "${nixowos}/default.nix"
+          {
+            nixowos.enable = true;
+            nixowos.graphical.enable = true;
+            nixowos.graphical.games.enable = true;
+            nixowos.graphical.plasma.startOnFirstTTY = true;
+            nixowos.graphical.jp.enable = true;
+          }
+        ];
+      };
+    };
+}
+```