Update configuration.nix

configuration.nix

@@ -1,6 +1,3 @@
-# NixOS USB system with auto-update from public Git repo
-# Repo: https://git.skarockoi.de/ska/nixos-production.git
-
 { config, pkgs, ... }:
 
 let
@@ -9,8 +6,7 @@ let
 in
 
 {
-  imports =
-    [ ./hardware-configuration.nix ];
+  imports = [ ./hardware-configuration.nix ];
 
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
@@ -61,38 +57,23 @@ in
   nixpkgs.config.allowUnfree = true;
 
   environment.systemPackages = with pkgs; [
-    git
-    curl
-    wget
-    vim
-    openssh
-    obsidian
-    libreoffice
-    keepassxc
-    thunderbird
-    tor-browser
-    inkscape
-    gimp
-    pdfarranger
-    epiphany
-    shortwave
-    gnomeExtensions.gsconnect
-    gnomeExtensions.dash-to-dock
+    git vim curl wget openssh
+    obsidian libreoffice keepassxc thunderbird tor-browser inkscape gimp pdfarranger
+    epiphany gnomeExtensions.gsconnect gnomeExtensions.dash-to-dock
   ];
 
   programs.firefox.enable = true;
 
-  # === Auto-update script with proper NIX_PATH for systemd ===
+  # Auto-update script with correct NIX_PATH
   environment.etc."update-nixos-config.sh".text = ''
     #!/run/current-system/sw/bin/bash
     set -e
 
-    # Critical: set NIX_PATH so nixos-rebuild can find <nixpkgs/nixos>
-    export NIX_PATH="nixpkgs=/run/current-system/nixos"
-    export PATH="/run/current-system/sw/bin:/nix/var/nix/profiles/default/bin"
+    # Use the standard NixOS channel path for nixpkgs
+    export NIX_PATH="nixpkgs=/nix/var/nix/profiles/per-user/root/channels/nixos"
 
-    LOCAL_PATH="${gitLocalPath}"
-    REPO_URL="${gitRepoUrl}"
+    LOCAL_PATH="/var/lib/nixos-config"
+    REPO_URL="https://git.skarockoi.de/ska/nixos-production.git"
 
     if [ ! -d "$LOCAL_PATH/.git" ]; then
       mkdir -p "$LOCAL_PATH"
@@ -117,7 +98,7 @@ in
   '';
   environment.etc."update-nixos-config.sh".mode = "0700";
 
-  # === Systemd timer: boot + hourly ===
+  # Simple systemd service — no 'path', no 'environment'
   systemd.services.nixos-git-update = {
     description = "Update NixOS from public Git config";
     script = "/etc/update-nixos-config.sh";