attempting to use a flake

flake.nix

@@ -0,0 +1,21 @@
+{
+  description = "Configuration for NixOS";
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    nixos-hardware.url = "github:nixos/nixos-hardware";
+    home-manager.url = "github:nix-community/home-manager";
+  };
+  outputs = inputs@{self, nixpkgs, nixos-hardware, ...}:
+  {
+    nixosConfigurations = {
+      neon = nixpkgs.lib.nixosSystem {
+        system = "x86_64-linux";
+        modules = [
+          # https://github.com/NixOS/nixos-hardware/blob/master/README.md#using-nix-flakes-support
+          nixos-hardware.nixosModules.gpd-pocket-3
+          ./configuration.nix
+        ];
+      };
+    }; 
+  };
+}