rewrite

common.nix

@@ -1,39 +0,0 @@
-{ config, lib, pkgs, ... }:
-
-{
-  # Shared users
-  users.mutableUsers = false;
-  users.users.phoenix = {
-    isNormalUser = true;
-    description = "Phoenix";
-    extraGroups = [ "wheel" ];
-    shell = pkgs.bash;
-    home = "/home/phoenix";
-    createHome = true;
-    useDefaultShell = true;
-  };
-
-  # Shared packages
-  environment.systemPackages = with pkgs; [
-    nano
-    vim
-    git
-    curl
-    wget
-    sops
-    age
-  ];
-
-  # Shared services
-  services.openssh.enable = true;
-  services.openssh.permitRootLogin = "no";
-
-  # Timezone and locale
-  time.timeZone = "Europe/London";
-  i18n.defaultLocale = "en_US.UTF-8";
-  console.keyMap = "uk";
-
-  # Firewall
-  networking.firewall.enable = true;
-  networking.firewall.allowedTCPPorts = [ 22 ]; # SSH
-}

flake.nix

@@ -1,10 +1,9 @@
 {
-  description = "Colmena Remote NixOS Management";
+  description = "NixOS at Home - Colmena Remote Management";
 
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
     nixpkgs-stable.url = "github:nixos/nixpkgs/nixos-22.11";
-
     colmena.url = "github:zhaofengli/colmena";
   };
 
@@ -16,7 +15,6 @@
             system = "x86_64-linux";
             overlays = [];
           };
-
           specialArgs = {
             inherit inputs;
           };

hosts/blade/default.nix

@@ -9,7 +9,7 @@
 {
 
   deployment = {
-    targetHost = "192.168.1.69"; # also supports an IP address
+    targetHost = "192.168.1.69";
     targetPort = 22;
     targetUser = "phoenix";
     buildOnTarget = true;
@@ -21,27 +21,14 @@
 
   imports = [
     ./hardware-configuration.nix
+    ../../modules/common.nix
   ];
 
-  #   boot.loader.grub.enable = true;
-  networking.useDHCP = false;
   networking.interfaces.eth0.useDHCP = true;
-  time.timeZone = "America/New_York";
   networking.hostName = "blade";
-  services.xserver.xkb.layout = "uk";
-  i18n.defaultLocale = "en_US.UTF-8";
-
-  nix.settings.trusted-users = [
-    "root"
-    "@wheel"
-  ];
 
   users.users.phoenix = {
-    isNormalUser = true;
-    extraGroups = [
-      "wheel"
-      "networkmanager"
-    ];
+    extraGroups = [ "wheel" "networkmanager" ];
     home = "/home/phoenix";
     packages = with pkgs; [
       vim
@@ -55,60 +42,13 @@
   };
 
   users.users.deploy = {
-    isNormalUser = true;
-    extraGroups = [
-      "wheel"
-      "networkmanager"
-    ];
+    extraGroups = [ "wheel" "networkmanager" ];
     home = "/home/deploy";
-    # packages = with pkgs; [
-    #   vim
-    #   tree
-    #   lego
-    # ];
     openssh.authorizedKeys.keys = [
       "sk-ecdsa-sha2-nistp256@openssh.com AAAAInNrLWVjZHNhLXNoYTItbmlzdHAyNTZAb3BlbnNzaC5jb20AAAAIbmlzdHAyNTYAAABBBMPNyAyMrqlI3tUI39TqcgYBciIC+aY2UNAunFqylhhzTVA14rluMjFqHf9HKs9SHZ52nLEV58/BxlnMeMtRc+cAAAAEc3NoOg== phoenix@DESKTOP-1A9MAJO"
       "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMoM3FANeYtWLJIiTL+nU0XzZft2psiSgbCmNfQZBXgy nixos@nixos"
     ];
   };
 
-#   systemd.user.enable = false;
-  security.sudo.extraRules = [
-    {
-      users = [ "phoenix" ];
-      commands = [
-        {
-          command = "ALL";
-          options = [ "NOPASSWD" ]; # "SETENV" # Adding the following could be a good idea
-        }
-      ];
-    }
-  ];
-
-  environment.systemPackages = with pkgs; [
-    inetutils
-    mtr
-    sysstat
-    dig
-    openssl
-  ];
-
-  services.openssh = {
-    enable = true;
-    settings.PermitRootLogin = "yes";
-  };
-
-  networking.firewall.allowedTCPPorts = [
-    22
-    80
-    443
-  ];
-  # networking.firewall.allowedUDPPorts = [ ... ];
-  networking.firewall.enable = true;
-  networking.usePredictableInterfaceNames = false;
-  # Bootloader
-  boot.loader.systemd-boot.enable = true;
-  boot.loader.efi.canTouchEfiVariables = true;
-
-  system.stateVersion = "25.11";
+  networking.firewall.allowedTCPPorts = [ 22 80 443 ];
 }

modules/common.nix

@@ -0,0 +1,11 @@
+{ config, lib, pkgs, ... }:
+
+{
+  imports = [
+    ./common/users.nix
+    ./common/packages.nix
+    ./common/services.nix
+    ./common/networking.nix
+    ./common/system.nix
+  ];
+}

modules/common/networking.nix

@@ -0,0 +1,15 @@
+{ config, lib, pkgs, ... }:
+
+{
+  time.timeZone = "Europe/London";
+  i18n.defaultLocale = "en_US.UTF-8";
+  console.keyMap = "uk";
+
+  networking = {
+    firewall.enable = true;
+    firewall.allowedTCPPorts = [ 22 ]; # SSH
+    hostName = config.networking.hostName or "nixos";
+    useDHCP = false;
+    usePredictableInterfaceNames = false;
+  };
+}

modules/common/packages.nix

@@ -0,0 +1,18 @@
+{ config, lib, pkgs, ... }:
+
+{
+  environment.systemPackages = with pkgs; [
+    nano
+    vim
+    git
+    curl
+    wget
+    sops
+    age
+    inetutils
+    mtr
+    sysstat
+    dig
+    openssl
+  ];
+}

modules/common/services.nix

@@ -0,0 +1,6 @@
+{ config, lib, pkgs, ... }:
+
+{
+  services.openssh.enable = true;
+  services.openssh.permitRootLogin = "no";
+}

modules/common/system.nix

@@ -0,0 +1,10 @@
+{ config, lib, pkgs, ... }:
+
+{
+  system.stateVersion = "25.11";
+
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  services.xserver.xkb.layout = "uk";
+}

modules/common/users.nix

@@ -0,0 +1,35 @@
+{ config, lib, pkgs, ... }:
+
+{
+  users.mutableUsers = false;
+
+  users.users.phoenix = {
+    isNormalUser = true;
+    description = "Phoenix";
+    extraGroups = [ "wheel" "networkmanager" ];
+    shell = pkgs.bash;
+    home = "/home/phoenix";
+    createHome = true;
+    useDefaultShell = true;
+  };
+
+  users.users.deploy = {
+    isNormalUser = true;
+    extraGroups = [ "wheel" "networkmanager" ];
+    home = "/home/deploy";
+  };
+
+  security.sudo.extraRules = [
+    {
+      users = [ "phoenix" ];
+      commands = [
+        {
+          command = "ALL";
+          options = [ "NOPASSWD" ];
+        }
+      ];
+    }
+  ];
+
+  nix.settings.trusted-users = [ "root" "@wheel" ];
+}