standard template finalised

nixos/standard/hosts/common/default.nix

@@ -1,10 +1,38 @@
 # Common configuration for all hosts
 
-{ config, lib, inputs, ... }: {
+{ lib, inputs, outputs, ... }: {
+  nixpkgs = {
+    # You can add overlays here
+    overlays = [
+      # Add overlays your own flake exports (from overlays and pkgs dir):
+      outputs.overlays.additions
+      outputs.overlays.modifications
+      outputs.overlays.stable-packages
+
+      # You can also add overlays exported from other flakes:
+      # neovim-nightly-overlay.overlays.default
+
+      # Or define it inline, for example:
+      # (final: prev: {
+      #   hi = final.hello.overrideAttrs (oldAttrs: {
+      #     patches = [ ./change-hello-to-hi.patch ];
+      #   });
+      # })
+    ];
+    # Configure your nixpkgs instance
+    config = {
+      # Disable if you don't want unfree packages
+      allowUnfree = true;
+    };
+  };
+
   nix = {
     settings = {
       experimental-features = "nix-command flakes";
-      trusted-users = [ "root" "m3tam3re" ];
+      trusted-users = [
+        "root"
+        "your-user"
+      ]; # Set users that are allowed to use the flake command
     };
     gc = {
       automatic = true;