initial config

nixos.nix

@@ -0,0 +1,49 @@
+{ inputs, ... }:
+
+# ============================================================================
+# User NixOS System Configuration (Optional)
+# ============================================================================
+# This file provides system-level NixOS configuration for a user.
+# It's optional - most user configuration should go in home.nix.
+#
+# Use this for:
+# - System-level services that depend on the user (e.g., user systemd services)
+# - Special system permissions or configurations
+# - Installing system packages that require root
+#
+# This module receives the same `inputs` flake inputs as the main
+# nixos-systems configuration.
+
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+{
+  # ========== System Configuration ==========
+  
+  # Example: Enable a system service for this user
+  # systemd.services.my-user-service = {
+  #   description = "My User Service";
+  #   wantedBy = [ "multi-user.target" ];
+  #   serviceConfig = {
+  #     Type = "oneshot";
+  #     User = "myusername";
+  #     ExecStart = "${pkgs.bash}/bin/bash -c 'echo Hello'";
+  #   };
+  # };
+
+  # Example: Install system-wide packages needed by this user
+  # environment.systemPackages = with pkgs; [
+  #   docker
+  # ];
+
+  # Example: Add user to additional groups
+  # users.users.myusername.extraGroups = [ "docker" ];
+
+  # Most configuration should be in home.nix instead of here
+  
+  services.tailscale.enable = true;
+}