include flake default template

README.md

@@ -12,9 +12,13 @@ automate as much as possible for a simple automation setup.
 
 ## How to create a VM
 
-- create a nix flake with a nixosConfiguration defined (e.g. `.#utm`)
-- define an environment variable VM_NAME to name the UTM VM (e.g. `myVm`)
+- create a nix flake with a nixosConfiguration defined
+	- the ./example folder provides a flake with minimal example config
+	- use it with `nix new -t github:ciderale/nixos-utm my-utm-vm`
+- define an environment variable VM_NAME to name the UTM VM
+	- maybe configure this env var within your project/system setup
 - kickoff the installation process with the following command
+	- assuming your flake is the current directory `.` with config `utm`
 
 ```
 export VM_NAME=myVM

example/flake.nix

@@ -0,0 +1,13 @@
+{
+  description = "Description for the project";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    disko.url = "github:nix-community/disko";
+    disko.inputs.nixpkgs.follows = "nixpkgs";
+  };
+
+  outputs = inputs @ {flake-parts, ...}: {
+    nixosConfigurations.utm = import ./default.nix inputs;
+  };
+}

flake.nix

@@ -210,6 +210,10 @@
       };
       flake = {
         nixosConfigurations.utm = import ./example/default.nix inputs;
+        templates.default = {
+          path = ./example;
+          description = "A basic UTM VM configuration";
+        };
       };
     };
 }