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

flake.nix

@@ -2,7 +2,7 @@
   description = "Nixos config flake";
 
   inputs = {
-    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-25.11";
     nixos-hardware.url = "github:NixOS/nixos-hardware/master";
 
     home-manager = {

hosts/cap-clust-01/configuration.nix

@@ -0,0 +1,41 @@
+# Edit this configuration file to define what should be installed on
+# your system.  Help is available in the configuration.nix(5) man page
+# and in the NixOS manual (accessible by running ‘nixos-help’).
+
+{ config, pkgs, ... }:
+
+{
+  imports = [
+    # Hardware Scan
+    ./hardware-configuration.nix
+
+    # Users
+    ../../users/cluster-admin/cluster-admin.nix
+
+
+    # System Configuration
+    ../../modules/system/cpu-amd.nix
+    ../../modules/system/fonts.nix
+    ../../modules/system/gpu-amd.nix
+    ../../modules/system/home-manager-settings.nix
+    ../../modules/system/internationalization.nix
+    ../../modules/system/networking.nix
+    ../../modules/system/nix-settings.nix
+    ../../modules/system/security.nix
+    ../../modules/system/systemd-boot.nix
+
+    # Application Groups
+    ../../modules/application-groups/system-utilities-cluster.nix
+  ];
+
+  networking.hostName = "cap-clust-01";
+  time.timeZone = "America/Los_Angeles";
+
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = "25.11"; # Did you read the comment?
+}

hosts/cap-clust-01/hardware-configuration.nix

@@ -0,0 +1,52 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
+
+{
+  imports = [
+    (modulesPath + "/installer/scan/not-detected.nix")
+  ];
+
+  boot.initrd.availableKernelModules = [
+    "xhci_pci"
+    "ahci"
+    "ehci_pci"
+    "usb_storage"
+    "usbhid"
+    "sd_mod"
+  ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [
+    "kvm-amd"
+    "amdgpu"
+  ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" = {
+    device = "/dev/disk/by-uuid/0028a3af-8470-46c2-81ca-6d9be16a6236";
+    fsType = "ext4";
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/C389-7B6B";
+    fsType = "vfat";
+    options = [
+      "fmask=0077"
+      "dmask=0077"
+    ];
+  };
+
+  swapDevices = [
+    { device = "/dev/disk/by-uuid/2b063ac4-54ee-4b16-b766-9c470733995c"; }
+  ];
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

hosts/cap-clust-02/hardware-configuration.nix

@@ -0,0 +1,52 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
+
+{
+  imports = [
+    (modulesPath + "/installer/scan/not-detected.nix")
+  ];
+
+  boot.initrd.availableKernelModules = [
+    "xhci_pci"
+    "ahci"
+    "ehci_pci"
+    "usb_storage"
+    "usbhid"
+    "sd_mod"
+  ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [
+    "kvm-amd"
+    "amdgpu"
+  ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" = {
+    device = "/dev/disk/by-uuid/9fcf291d-2576-44b4-bcba-98e40305e531";
+    fsType = "ext4";
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/7727-439F";
+    fsType = "vfat";
+    options = [
+      "fmask=0077"
+      "dmask=0077"
+    ];
+  };
+
+  swapDevices = [
+    { device = "/dev/disk/by-uuid/56f2d727-03c5-4aef-9871-217bf98cdbb4"; }
+  ];
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

hosts/cap-clust-03/hardware-configuration.nix

@@ -0,0 +1,52 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
+
+{
+  imports = [
+    (modulesPath + "/installer/scan/not-detected.nix")
+  ];
+
+  boot.initrd.availableKernelModules = [
+    "xhci_pci"
+    "ahci"
+    "ehci_pci"
+    "usbhid"
+    "usb_storage"
+    "sd_mod"
+  ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [
+    "kvm-amd"
+    "amdgpu"
+  ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" = {
+    device = "/dev/disk/by-uuid/c2cfd56f-0090-45eb-a239-068fdadd2fd4";
+    fsType = "ext4";
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/C3CF-3854";
+    fsType = "vfat";
+    options = [
+      "fmask=0077"
+      "dmask=0077"
+    ];
+  };
+
+  swapDevices = [
+    { device = "/dev/disk/by-uuid/e60a5ced-d01e-4613-afba-9b445bc43097"; }
+  ];
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

hosts/cap-clust-04/hardware-configuration.nix

@@ -0,0 +1,52 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
+
+{
+  imports = [
+    (modulesPath + "/installer/scan/not-detected.nix")
+  ];
+
+  boot.initrd.availableKernelModules = [
+    "xhci_pci"
+    "ahci"
+    "ehci_pci"
+    "usbhid"
+    "usb_storage"
+    "sd_mod"
+  ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [
+    "kvm-amd"
+    "amdgpu"
+  ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" = {
+    device = "/dev/disk/by-uuid/b9c79a2f-8c6a-4f86-8562-b2f882992e95";
+    fsType = "ext4";
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/EF0B-C66E";
+    fsType = "vfat";
+    options = [
+      "fmask=0077"
+      "dmask=0077"
+    ];
+  };
+
+  swapDevices = [
+    { device = "/dev/disk/by-uuid/9a123c08-cc9b-4516-a158-b274e9b399c3"; }
+  ];
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

hosts/cap-clust-05/hardware-configuration.nix

@@ -0,0 +1,52 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
+
+{
+  imports = [
+    (modulesPath + "/installer/scan/not-detected.nix")
+  ];
+
+  boot.initrd.availableKernelModules = [
+    "xhci_pci"
+    "ahci"
+    "ehci_pci"
+    "usbhid"
+    "usb_storage"
+    "sd_mod"
+  ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [
+    "kvm-amd"
+    "amdgpu"
+  ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" = {
+    device = "/dev/disk/by-uuid/51ce9236-fe8c-49bc-bb90-1e582d163d04";
+    fsType = "ext4";
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/FF5C-EB30";
+    fsType = "vfat";
+    options = [
+      "fmask=0077"
+      "dmask=0077"
+    ];
+  };
+
+  swapDevices = [
+    { device = "/dev/disk/by-uuid/1d24fd7d-c958-44ad-bb28-c394f3d56a6b"; }
+  ];
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

hosts/cap-clust-06/hardware-configuration.nix

@@ -0,0 +1,52 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
+
+{
+  imports = [
+    (modulesPath + "/installer/scan/not-detected.nix")
+  ];
+
+  boot.initrd.availableKernelModules = [
+    "xhci_pci"
+    "ahci"
+    "ehci_pci"
+    "usbhid"
+    "usb_storage"
+    "sd_mod"
+  ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [
+    "kvm-amd"
+    "amdgpu"
+  ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" = {
+    device = "/dev/disk/by-uuid/8cf14e41-2af7-4bbd-89e2-90f5d04601b8";
+    fsType = "ext4";
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/33C3-BB59";
+    fsType = "vfat";
+    options = [
+      "fmask=0077"
+      "dmask=0077"
+    ];
+  };
+
+  swapDevices = [
+    { device = "/dev/disk/by-uuid/262fa61f-4beb-4822-ace6-bb15c62b2cca"; }
+  ];
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

hosts/cap-clust-07/hardware-configuration.nix

@@ -0,0 +1,52 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
+
+{
+  imports = [
+    (modulesPath + "/installer/scan/not-detected.nix")
+  ];
+
+  boot.initrd.availableKernelModules = [
+    "xhci_pci"
+    "ahci"
+    "ehci_pci"
+    "usbhid"
+    "usb_storage"
+    "sd_mod"
+  ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [
+    "kvm-amd"
+    "amdgpu"
+  ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" = {
+    device = "/dev/disk/by-uuid/ad88a1b0-c98e-4a95-9fb3-3299169c952b";
+    fsType = "ext4";
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/73CA-8E6D";
+    fsType = "vfat";
+    options = [
+      "fmask=0077"
+      "dmask=0077"
+    ];
+  };
+
+  swapDevices = [
+    { device = "/dev/disk/by-uuid/c6139db9-2a9d-400a-b8a8-c8f77c5713ca"; }
+  ];
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

hosts/cap-clust-09/hardware-configuration.nix

@@ -0,0 +1,52 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
+
+{
+  imports = [
+    (modulesPath + "/installer/scan/not-detected.nix")
+  ];
+
+  boot.initrd.availableKernelModules = [
+    "xhci_pci"
+    "ahci"
+    "ehci_pci"
+    "usbhid"
+    "usb_storage"
+    "sd_mod"
+  ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [
+    "kvm-amd"
+    "amdgpu"
+  ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" = {
+    device = "/dev/disk/by-uuid/30b3183d-8358-46aa-b565-70c7d30af7c7";
+    fsType = "ext4";
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/BA04-7969";
+    fsType = "vfat";
+    options = [
+      "fmask=0077"
+      "dmask=0077"
+    ];
+  };
+
+  swapDevices = [
+    { device = "/dev/disk/by-uuid/42aeb402-5b5a-4423-b2a5-2c08935c9f57"; }
+  ];
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

hosts/cap-clust-10/hardware-configuration.nix

@@ -0,0 +1,52 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
+
+{
+  imports = [
+    (modulesPath + "/installer/scan/not-detected.nix")
+  ];
+
+  boot.initrd.availableKernelModules = [
+    "xhci_pci"
+    "ahci"
+    "ehci_pci"
+    "usbhid"
+    "usb_storage"
+    "sd_mod"
+  ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [
+    "kvm-amd"
+    "amdgpu"
+  ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" = {
+    device = "/dev/disk/by-uuid/affec1c2-bf7c-499e-80a6-6615fd163e1a";
+    fsType = "ext4";
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/9E1A-C3DA";
+    fsType = "vfat";
+    options = [
+      "fmask=0077"
+      "dmask=0077"
+    ];
+  };
+
+  swapDevices = [
+    { device = "/dev/disk/by-uuid/a17f3a16-78fb-494d-8319-89e31e1defae"; }
+  ];
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

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" ];
 }

users/cluster-admin/cluster-admin.nix

@@ -0,0 +1,36 @@
+{ config, pkgs, ... }:
+{
+  users.users.cluster-admin = {
+    initialPassword = "changeme";
+    isNormalUser = true;
+    description = "Cluster Admin";
+    extraGroups = [
+      "networkmanager"
+      "wheel"
+    ];
+  };
+
+  home-manager.users.cluster-admin = {
+    home.username = "cluster-admin";
+    home.homeDirectory = "/home/cluster-admin";
+    home.stateVersion = "25.05";
+
+    home.packages = with pkgs; [ ];
+
+    programs.bash.enable = true;
+
+    programs.git = {
+      enable = true;
+      settings.user = {
+        name = "Corwin Perren";
+        email = "caperren@gmail.com";
+      };
+
+    };
+
+    programs.kitty = {
+      enable = true;
+      font.name = "JetBrains Mono";
+    };
+  };
+}