Add skip01 NixOS configuration for Intel NUC server

- Created systems/skip01.nix with 13th gen Intel i5 NUC optimizations
- Configured for headless server operation with SSH access
- Enabled Docker and Podman for container services
- Added Intel graphics support and thermal management
- Network performance tuning for server workloads
- Added skip01 to flake.nix nixosConfigurations

systems/skip01.nix

@@ -0,0 +1,84 @@
+{ config, lib, pkgs, modulesPath, ... }: {
+  networking.hostName = "skip01";
+
+  # CPU Settings for 13th gen Intel Core i5
+  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+
+  # Boot and kernel modules for Intel NUC
+  boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "nvme" "usb_storage" "sd_mod" ];
+  boot.initrd.kernelModules = [ "i915" ]; # Intel integrated graphics
+  boot.kernelModules = [ "kvm-intel" ]; # Intel virtualization support
+  boot.extraModulePackages = [];
+  
+  # Intel-specific kernel parameters
+  boot.kernelParams = [
+    "i915.enable_guc=2"  # Enable GuC and HuC for better power management
+    "intel_iommu=on"     # Enable IOMMU for virtualization
+  ];
+
+  networking.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+
+  # Intel graphics support
+  hardware.opengl = {
+    enable = true;
+    driSupport = true;
+    driSupport32Bit = true;
+    extraPackages = with pkgs; [
+      intel-media-driver  # VAAPI driver for newer Intel GPUs
+      vaapiIntel         # VAAPI driver for older Intel GPUs
+      vaapiVdpau
+      libvdpau-va-gl
+    ];
+  };
+
+  # Power management optimized for server use
+  powerManagement = {
+    enable = true;
+    cpuFreqGovernor = "ondemand";
+  };
+
+  # Thermal management
+  services.thermald.enable = true;
+
+  # Server-oriented settings
+  services.openssh = {
+    enable = true;
+    settings = {
+      PasswordAuthentication = false;
+      KbdInteractiveAuthentication = false;
+      PermitRootLogin = "no";
+    };
+  };
+
+  # Swap configuration (smaller for server use)
+  swapDevices = [
+    {
+      device = "/swapfile";
+      size = 8192; # 8GB swap for server workload
+      priority = 0;
+    }
+  ];
+
+  # Enable hardware monitoring
+  hardware.sensor.iio.enable = true;
+  
+  # Network performance tuning for server use
+  boot.kernel.sysctl = {
+    "net.core.rmem_max" = 134217728;
+    "net.core.wmem_max" = 134217728;
+    "net.ipv4.tcp_rmem" = "4096 65536 134217728";
+    "net.ipv4.tcp_wmem" = "4096 65536 134217728";
+    "net.core.netdev_max_backlog" = 5000;
+  };
+
+  # Disable unnecessary services for server use
+  services.xserver.enable = lib.mkForce false;
+  services.pipewire.enable = lib.mkForce false;
+  services.pulseaudio.enable = lib.mkForce false;
+  
+  # Enable container support for future server services
+  virtualisation.docker.enable = true;
+  virtualisation.podman.enable = true;
+}