Major rewrite to system config

Move home-manager setup back into being NixOS module where possible

Parameterise common elements of system config to minimise rewriting and
pass as function to all places needed

flake.nix

@@ -22,11 +22,32 @@
     };
   };
 
-  outputs = { self, nixpkgs, home-manager, hyprland, anyrun, wallpapers, tokyonight, }:
-    let shell = "zsh";
-    in {
-      nixosConfigurations = let
-        userConfig = {
+  outputs =
+    { self, nixpkgs, home-manager, hyprland, anyrun, wallpapers, tokyonight, }:
+    let
+      systemConfig =
+        { hostName, user ? "xenia", system ? "x86_64-linux", shell ? "zsh" }:
+        let
+          pkgs = import nixpkgs {
+            inherit system;
+            config.allowUnfree = true;
+            overlays = [
+              (final: prev: {
+                waybar = prev.waybar.overrideAttrs (oldAttrs: {
+                  mesonFlags = oldAttrs.mesonFlags ++ [ "-Dexperimental=true" ];
+                });
+              })
+            ];
+          };
+        in nixpkgs.lib.nixosSystem {
+          inherit pkgs;
+          specialArgs = { inherit hostName user shell hyprland; };
+          modules = [
+            ./hosts/${hostName}/configuration.nix
+            ./services/${hostName}.nix
+            {
+              networking = { inherit hostName; };
+              users.users.${user} = {
                 isNormalUser = true;
                 description = "Evie Litherland-Smith";
                 group = "users";
@@ -34,71 +55,57 @@
                 shell = pkgs.${shell};
                 openssh.authorizedKeys.keys = import ./auth/authorized_keys.nix;
               };
-        specialArgs = { inherit shell userConfig hyprland; };
-        waybar-experimental-overlay = final: prev: {
-          waybar = prev.waybar.overrideAttrs (oldAttrs: {
-            mesonFlags = oldAttrs.mesonFlags ++ [ "-Dexperimental=true" ];
-          });
-        };
-        system = "x86_64-linux";
-        pkgs = import nixpkgs {
-          inherit system;
-          config.allowUnfree = true;
-          overlays = [ waybar-experimental-overlay ];
-        };
-      in {
-        Legion = let hostname = "Legion";
-        in nixpkgs.lib.nixosSystem {
-          inherit pkgs specialArgs;
-          modules = [ ./hosts/${hostname}/configuration.nix ];
-        };
-        Vanguard = let hostname = "Vanguard";
-        in nixpkgs.lib.nixosSystem {
-          inherit pkgs specialArgs;
-          modules = [ ./hosts/${hostname}/configuration.nix ];
-        };
-        Ronin = let hostname = "Ronin";
-        in nixpkgs.lib.nixosSystem {
-          inherit pkgs specialArgs;
-          modules = [ ./hosts/${hostname}/configuration.nix ];
-        };
-      };
-      homeConfigurations = let
+            }
+            home-manager.nixosModules.home-manager
+            {
+              home-manager = {
+                useGlobalPkgs = true;
+                useUserPackages = false;
                 extraSpecialArgs = {
-          inherit hyprland anyrun wallpapers tokyonight;
+                  inherit user hyprland anyrun wallpapers tokyonight;
                   shellConfig = ./home/shell/${shell}.nix;
                 };
-      in {
-        # NixOS home configurations
-        "xenia@Vanguard" = let
-          hostname = "Vanguard";
-          pkgs = self.nixosConfigurations.${hostname}.pkgs;
-        in home-manager.lib.homeManagerConfiguration {
-          inherit pkgs extraSpecialArgs;
-          modules = [ ./hosts/${hostname}/home.nix ];
+                users.${user} = import ./hosts/${hostName}/home.nix;
               };
-        "xenia@Legion" = let
-          hostname = "Legion";
-          pkgs = self.nixosConfigurations.${hostname}.pkgs;
-        in home-manager.lib.homeManagerConfiguration {
-          inherit pkgs extraSpecialArgs;
-          modules = [ ./hosts/${hostname}/home.nix ];
+            }
+          ];
         };
-        "elitherl@Ronin" = let
-          hostname = "Ronin";
-          pkgs = self.nixosConfigurations.${hostname}.pkgs;
-        in home-manager.lib.homeManagerConfiguration {
-          inherit pkgs extraSpecialArgs;
-          modules = [ ./hosts/${hostname}/home.nix ];
-        };
-        # Legacy home configurations
-        "tux@Monarch" = let
-          hostname = "Monarch";
-          system = "aarch64-darwin";
+      homeConfig = { hostName, user, system ? "x86_64-linux", shell ? "zsh" }:
+        home-manager.lib.homeManagerConfiguration {
           pkgs = nixpkgs.legacyPackages.${system};
-        in home-manager.lib.homeManagerConfiguration {
-          inherit pkgs extraSpecialArgs;
-          modules = [ ./hosts/${hostname}/home.nix ];
+          extraSpecialArgs = {
+            inherit user shell hyprland anyrun wallpapers tokyonight;
+            shellConfig = ./home/shell/${shell}.nix;
+          };
+          modules = [ ./hosts/${hostName}/home.nix ];
+        };
+    in {
+      nixosConfigurations = {
+        Legion = systemConfig {
+          hostName = "Legion";
+          user = "elitherl";
+          system = "x86_64-linux";
+          shell = "zsh";
+        };
+        Ronin = systemConfig {
+          hostName = "Ronin";
+          user = "elitherl";
+          system = "x86_64-linux";
+          shell = "zsh";
+        };
+        Vanguard = systemConfig {
+          hostName = "Vanguard";
+          user = "xenia";
+          system = "x86_64-linux";
+          shell = "zsh";
+        };
+      };
+      homeConfigurations = {
+        "tux@Monarch" = homeConfig {
+          hostName = "Monarch";
+          user = "tux";
+          system = "aarch64-darwin";
+          shell = "zsh";
         };
       };
     };

hosts/Legion/configuration.nix

@@ -1,24 +1,17 @@
 # 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`).
-{userConfig, ...}: let
-  user = "xenia";
-  hostName = "Legion";
-in {
+{ ... }: {
   imports = [
     # Include the results of the hardware scan.
     ./hardware-configuration.nix
     ../common.nix
-    ../../services/${hostName}.nix
   ];
 
   # Use the systemd-boot EFI boot loader.
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
-  networking = {
-    hostName = hostName; # Define your hostname.
-    nameservers = ["192.168.1.230" "127.0.0.1" "9.9.9.9"];
-  };
+  networking.nameservers = [ "192.168.1.230" "127.0.0.1" "9.9.9.9" ];
   system.autoUpgrade = {
     enable = true;
     dates = "02:00";
@@ -28,7 +21,6 @@ in {
       upper = "05:00";
     };
   };
-  users.users.${user} = userConfig;
 
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions

hosts/Legion/home.nix

@@ -1,7 +1,5 @@
-{ pkgs, shellConfig, ... }:
-let
-  username = "xenia";
-  homeDirectory = "/home/${username}";
+{ pkgs, user, shellConfig, ... }:
+let homeDirectory = "/home/${user}";
 in {
   imports = [
     shellConfig
@@ -11,7 +9,8 @@ in {
     ../../home/tui
   ];
   home = {
-    inherit username homeDirectory;
+    inherit homeDirectory;
+    username = user;
     stateVersion = "22.11";
   };
   programs = {

hosts/Monarch/home.nix

@@ -1,10 +1,8 @@
-{ pkgs, ... }:
-let
-  username = "tux";
-  homeDirectory = "/Users/${username}";
+{ pkgs, user, shell ? "zsh", ... }:
+let homeDirectory = "/Users/${user}";
 in {
   imports = [
-    ../../home/shell/zsh.nix
+    ../../home/shell/${shell}.nix
     ../../home/git
     ../../home/ssh
     ../../home/tui
@@ -13,7 +11,8 @@ in {
     ../../home/emacs
   ];
   home = {
-    inherit username homeDirectory;
+    inherit homeDirectory;
+    username = user;
     stateVersion = "23.05";
     packages = with pkgs; [ coreutils-prefixed ];
   };

hosts/Ronin/configuration.nix

@@ -1,16 +1,11 @@
 # 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’).
-{ userConfig, ... }:
-let
-  user = "elitherl";
-  hostName = "Ronin";
-in {
+{ ... }: {
   imports = [
     # Include the results of the hardware scan.
     ./hardware-configuration.nix
     ../hyprland.nix
-    ../../services/${hostName}.nix
   ];
   # Bootloader.
   boot.loader.systemd-boot.enable = true;
@@ -25,20 +20,11 @@ in {
   boot.initrd.luks.devices."luks-761eeb11-3091-4142-9232-4fb33165eccd".keyFile =
     "/crypto_keyfile.bin";
 
-  networking.hostName = hostName; # Define your hostname.
   hardware.bluetooth.enable = true;
   environment.etc."ppp/options".text = ''
     ipcp-accept-remote
   '';
   programs.light.enable = true;
-  users.users.${user} = userConfig;
-  services.greetd = {
-    enable = true;
-    settings = {
-      default_session.user = user;
-      initial_session.user = user;
-    };
-  };
 
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions

hosts/Ronin/home.nix

@@ -1,11 +1,10 @@
-{ pkgs, lib, shellConfig, ... }:
-let
-  username = "elitherl";
-  homeDirectory = "/home/${username}";
+{ pkgs, lib, user, shellConfig, ... }:
+let homeDirectory = "/home/${user}";
 in {
   imports = [ shellConfig ../../home ];
   home = {
-    inherit username homeDirectory;
+    inherit homeDirectory;
+    username = user;
     stateVersion = "22.11";
     packages = with pkgs; [
       openfortivpn

hosts/Vanguard/configuration.nix

@@ -1,25 +1,17 @@
 # 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’).
-{ pkgs, userConfig, ... }:
-let
-  user = "xenia";
-  hostName = "Vanguard";
-in {
+{ pkgs, ... }: {
   imports = [
     # Include the results of the hardware scan.
     ./hardware-configuration.nix
     ../hyprland.nix
-    ../../services/${hostName}.nix
   ];
 
   # Bootloader.
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
-  networking = {
-    hostName = hostName; # Define your hostname.
-    nameservers = [ "192.168.1.230" "9.9.9.9" ];
-  };
+  networking.nameservers = [ "192.168.1.230" "9.9.9.9" ];
   environment.systemPackages = with pkgs; [ mesa ];
   hardware = {
     bluetooth.enable = true;
@@ -32,15 +24,6 @@ in {
     dedicatedServer.openFirewall = true;
   };
 
-  users.users.${user} = userConfig;
-  services.greetd = {
-    enable = true;
-    settings = {
-      default_session.user = user;
-      initial_session.user = user;
-    };
-  };
-
   # 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

hosts/Vanguard/home.nix

@@ -1,15 +1,10 @@
-{ shellConfig, ... }:
-let
-  username = "xenia";
-  homeDirectory = "/home/${username}";
-in
-{
-  imports = [
-    shellConfig
-    ../../home
-  ];
+{ user, shellConfig, ... }:
+let homeDirectory = "/home/${user}";
+in {
+  imports = [ shellConfig ../../home ];
   home = {
-    inherit username homeDirectory;
+    inherit homeDirectory;
+    username = user;
     stateVersion = "22.11";
   };
   programs.home-manager.enable = true;

hosts/hyprland.nix

@@ -1,4 +1,4 @@
-{ pkgs, hyprland, ... }: {
+{ pkgs, hyprland, user ? "xenia", ... }: {
   imports = [ ./desktop.nix hyprland.nixosModules.default ];
   environment.systemPackages = with pkgs; [
     xdg-utils
@@ -21,9 +21,18 @@
     blueman.enable = true;
     gvfs.enable = true;
     tumbler.enable = true;
-    greetd.settings = {
-      default_session.command = "Hyprland";
-      initial_session.command = "Hyprland";
+    greetd = {
+      enable = true;
+      settings = {
+        default_session = {
+          inherit user;
+          command = "Hyprland";
+        };
+        initial_session = {
+          inherit user;
+          command = "Hyprland";
+        };
+      };
     };
   };
   fonts = {