Add cluster host definitions, cluster utilities, and admin, switch nixpkgs to stable

modules/application-groups/system-utilities-cluster.nix

@@ -0,0 +1,26 @@
+{ config, pkgs, ... }:
+{
+
+  services.glances.enable = true;
+  services.openssh.enable = true;
+
+  environment.systemPackages = with pkgs; [
+    btop
+    dnsutils
+    git
+    htop
+    iftop
+    iotop
+    killall
+    kitty
+    ncdu
+    networkmanager
+    nmap
+    nvtopPackages.full
+    pciutils
+    unzip
+    usbutils
+    util-linux
+    wget
+  ];
+}

modules/system/gpu-amd.nix

@@ -1,5 +1,11 @@
 { config, pkgs, ... }:
 {
-  services.xserver.videoDrivers = [ "amdgpu" ];
+  hardware.graphics = {
+    enable = true;
+    enable32Bit = true;
+  };
 
+  nixpkgs.config.rocmSupport = true;
+
+  services.xserver.videoDrivers = [ "amdgpu" ];
 }