Add flake.nix

flake.nix

@@ -0,0 +1,26 @@
+{
+  description = "Media-Box-NixOS-config";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/release-24.11";
+    nixos-hardware.url = "github:NixOS/nixos-hardware/master";
+  };
+
+  outputs = { self, nixpkgs, nixos-hardware, ... }:
+  let
+    system = "x86_64-linux";
+    lib = nixpkgs.lib;
+  in {
+
+    nixosConfigurations = {
+      macmini15 = lib.nixosSystem {
+        inherit system;
+        modules = [
+          # add your model from this list: https://github.com/NixOS/nixos-hardware/blob/master/flake.nix
+          nixos-hardware.nixosModules.apple-macmini-4-1
+          ./configuration.nix
+        ];
+      };
+    };
+  };
+}