modularise a bit

flake.nix

@@ -10,29 +10,16 @@
   outputs = { nixpkgs, home-manager, ... }:
   let
     system = "x86_64-linux";
-
     pkgs = import nixpkgs {
       inherit system;
     };
-
     lib = nixpkgs.lib;
+    mkConf = import ./lib/mkconf.nix;
+
+    user = "tristan";
   in {
-
     nixosConfigurations = {
-      zenix = lib.nixosSystem {
+      zenix = mkConf "zenix" { inherit nixpkgs system user home-manager; };
-        inherit system;
-
-        modules = [
-          ./system/configuration.nix
-          home-manager.nixosModules.home-manager {
-            home-manager.useGlobalPkgs = true;
-            home-manager.useUserPackages = true;
-            home-manager.users.tristan = {
-              imports = [ ./home.nix ];
-            };
-          }
-        ];
-      };
     };
   };
 }

global.nix

@@ -1,42 +1,22 @@
-# 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’).
 
 # https://search.nixos.org/options
 
 { config, pkgs, ... }:
 {
 
-  imports = [
-    ./hardware-configuration.nix
-  ];
-
   nix.settings = {
     experimental-features = [ "nix-command" "flakes" ];
   };
 
   nix.settings.trusted-users = [ "root" "tristan" ];
   
-  # Use the systemd-boot EFI boot loader.
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
 
-  # boot.loader.grub.enable = true;
-  # boot.loader.grub.version = 2;
-  # boot.loader.grub.devices = ["nodev"];
-  # boot.loader.grub.useOSProber = true;
-  # boot.loader.efi.canTouchEfiVariables = true;
-
-  networking.hostName = "zenix";
   networking.networkmanager.enable = true;
 
   time.timeZone = "Europe/London";
 
-  i18n.defaultLocale = "en_GB.UTF-8";
-  console = {
-    font = "Lat2-Terminus16";
-  };
-
   # use pipewire
   hardware.pulseaudio.enable = false;
   security.rtkit.enable = true;
@@ -158,35 +138,5 @@
     bind-key -T copy-mode-vi y send-keys -X copy-selection
   '';
 
-  # Some programs need SUID wrappers, can be configured further or are
-  # started in user sessions.
-  # programs.mtr.enable = true;
-  # programs.gnupg.agent = {
-  #   enable = true;
-  #   enableSSHSupport = true;
-  # };
-
-  # List services that you want to enable:
-
-  # Enable the OpenSSH daemon.
-  services.openssh.enable = true;
-
-  services.tailscale.enable = true;
-
-  # Open ports in the firewall.
-  networking.firewall.allowedTCPPorts = [ ];
-  # networking.firewall.allowedUDPPorts = [ ... ];
-  # Or disable the firewall altogether.
-  # networking.firewall.enable = false;
-
-  networking.firewall.checkReversePath = "loose";
-
-  # Copy the NixOS configuration file and link it from the resulting system
-  # (/run/current-system/configuration.nix). This is useful in case you
-  # accidentally delete configuration.nix.
-  # system.copySystemConfiguration = true;
-
-  system.stateVersion = "22.11"; # Did you read the comment?
-
 }
 

lib/mkconf.nix

@@ -0,0 +1,17 @@
+name: { nixpkgs, home-manager, system, user, ... }:
+
+nixpkgs.lib.nixosSystem rec {
+  inherit system;
+
+  modules = [
+
+    ../hardware/${name}.nix
+    ../system/${name}.nix
+    ../global.nix
+    home-manager.nixosModules.home-manager {
+      home-manager.useGlobalPkgs = true;
+      home-manager.useUserPackages = true;
+      home-manager.users.${user} = import ../home.nix;
+    }
+  ];
+}

system/zenix.nix

@@ -0,0 +1,23 @@
+# https://search.nixos.org/options
+
+{ config, pkgs, ... }:
+{
+
+  networking.hostName = "zenix";
+
+  i18n.defaultLocale = "en_GB.UTF-8";
+  console = {
+    font = "Lat2-Terminus16";
+  };
+
+  services.openssh.enable = true;
+
+  services.tailscale.enable = true;
+  networking.firewall.checkReversePath = "loose";
+
+  networking.firewall.allowedTCPPorts = [ ];
+
+  system.stateVersion = "22.11"; # do not change
+
+}
+