added tig for overview ^^

configuration.nix

@@ -1,8 +1,25 @@
 { config, pkgs, ... }:
 
+let
+  hdmiHandler = pkgs.writeShellScript "hdmi-display-manager" ''
+    #!/usr/bin/env bash
+    set -euo pipefail
+    PORT=$(ls /sys/class/drm/card*-HDMI-A-*/*status 2>/dev/null | head -n1 || true)
+    [[ -z "$PORT" ]] && exit 0
+    status=$(cat "$PORT" || echo "disconnected")
+
+    if [[ "$status" == "connected" ]]; then
+      systemctl start display-manager.service
+    else
+      systemctl stop display-manager.service
+    fi
+    exit 0
+  '';
+in
 {
   imports = [ ./hardware/hardware-configuration.nix ];
 
+  nixpkgs.config.allowUnfree = true;
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
   boot.initrd.kernelModules = [ "overlay" "vmd" ];
@@ -43,12 +60,21 @@
   users.users.nicole = {
     isNormalUser = true;
     hashedPassword = "$6$p73d5mOLoSuJGOol$KRlszaPXZK9/frADlfR3kAr/57DD5f4.CPTGNNX80QWEWFE5y.bM1WiZwmRHiAlrws3q/zCDQ6AqeSyCUX.8U/";
-    extraGroups = [ "wheel" "docker" "libvirtd" ];
+    extraGroups = [ "wheel" "docker" "libvirtd" "video" "render" ];
     openssh.authorizedKeys.keys = [
       "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGAsiKDWCwyf1usprg3K6Zk0xE9S4DX6+Bc4+nIOZGmf drezil@Manticore"
     ];
   };
 
+  users.users.kodi = {
+    isNormalUser  = true;
+    home          = "/home/kodi";
+    description   = "Kodi Auto-Login User";
+    extraGroups   = [ "video" "render" ];   # GPU-/DRM-Zugriff
+    linger        = true;                  # User-Scope darf headless laufen
+    # kein wheel ⇒ kein sudo
+  };
+
 
   system.stateVersion = "25.05";   # ← einmalig festnageln
   security.sudo.wheelNeedsPassword = false;
@@ -60,12 +86,21 @@
     serviceConfig.ExecStart = "/run/current-system/sw/bin/zfs-prune-snapshots -r --keep=2w";
     startAt = "daily";
   };
-
+  systemd.services.systemd-udev-settle.enable = false;
-
+  systemd.services.NetworkManager-wait-online.enable = false;
+   
+   
   # Wir pinnen den Kernel, bis ZFS 2.3.x für 6.13 bereit ist
   boot.kernelPackages = pkgs.linuxPackages_6_12;
 
-  environment.systemPackages = with pkgs; [ git vim zfs ];
+  ##########################################################################
+  ### SYSTEM PACKAGES  #####################################################
+  ##########################################################################
+  environment.systemPackages = with pkgs; [ 
+    git tig vim zfs virt-viewer
+    kodi netflix
+    
+  ];
 
 
   #### Virtualisation
@@ -75,4 +110,59 @@
   users.groups.docker.members = [ "nicole" ];
   programs.virt-manager.enable = true;
 
+
+  #### nix-Cache
+  # --- Binary-Cache
+  services.nix-serve = {
+    enable          = true;
+    secretKeyFile   = "/var/cache/nix/secret-key";
+    openFirewall    = true;
+    port            = 5000;
+  };
+  
+  nix.settings = {
+    substituters        = [ "http://nix-nas:5000" "https://cache.nixos.org" ];
+    trusted-public-keys = [
+      "nas-cache:rgCDn9SwmvxvhjiEiRgrjAuAEyRiJT/aBIlywetuypM="
+      "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="      # Standard-Key vom upstream Cache
+    ];
+    secret-key-files    = [ "/var/cache/nix/secret-key" ];
+  };
+
+  ##########################################################################
+  ### Kodi & TV-Detect #####################################################
+  ##########################################################################
+
+
+  services.xserver = {
+    enable = true;
+    videoDrivers = [ "modesetting" ];     # Intel iGPU
+    desktopManager.kodi = {
+      enable = true;
+      package = (pkgs.kodi.withPackages (kodiPkgs: with kodiPkgs; [
+        jellyfin
+        netflix
+        mediacccde
+        mediathekview
+        sponsorblock
+        youtube
+      ]));
+    };
+    displayManager.startx.enable = false; # nutzt LightDM intern
+    xkb = {
+      layout = "de,de";
+      variant = ",neo";
+    };
+  };
+  console.useXkbConfig = true;
+  services.displayManager.autoLogin = {
+    enable = true;
+    user   = "kodi";
+  };
+
+  ### UDEV-Regel + Skript ##################################################
+  services.udev.extraRules = ''
+    ACTION=="change", SUBSYSTEM=="drm", ENV{HOTPLUG}=="1", RUN+="${hdmiHandler}"
+  '';
+
 }