flake.nix

@@ -38,6 +38,7 @@
     # This is a function that generates an attribute by calling a function you
     # pass to it, with each system as an argument
     forAllSystems = nixpkgs.lib.genAttrs systems;
+    vars = import ./vars.nix;
   in {
     # Your custom packages
     # Accessible through 'nix build', 'nix shell', etc
@@ -59,7 +60,7 @@
     # Available through 'nixos-rebuild --flake .#your-hostname'
     nixosConfigurations = {
       adalbert = nixpkgs.lib.nixosSystem {
-        specialArgs = {inherit inputs outputs;};
+        specialArgs = {inherit inputs outputs vars;};
         modules = [
           ./hosts/adalbert
         ];
@@ -71,7 +72,7 @@
     homeConfigurations = {
       "ghoscht@adalbert" = home-manager.lib.homeManagerConfiguration {
         pkgs = nixpkgs.legacyPackages.x86_64-linux; # Home-manager requires 'pkgs' instance
-        extraSpecialArgs = {inherit inputs outputs;};
+        extraSpecialArgs = {inherit inputs outputs vars;};
         modules = [
           ./home/ghoscht/adalbert.nix
         ];

hosts/adalbert/default.nix

@@ -25,7 +25,6 @@
     ./hardware-configuration.nix
 
     ../common/global
-    ../common/users/ghoscht
     ../common/optional/desktop/awesome.nix
 
     ../common/optional/systemd-boot.nix

hosts/common/global/default.nix

@@ -2,11 +2,13 @@
 {
   inputs,
   outputs,
+  config,
   ...
 }: {
   imports =
     [
       inputs.home-manager.nixosModules.home-manager
+      ./user.nix
       ./fish.nix
       ./locale.nix
       ./nix.nix

hosts/common/global/user.nix

@@ -1,11 +1,15 @@
 {
+  inputs,
+  outputs,
   pkgs,
   config,
+  vars,
   ...
 }: let
   ifTheyExist = groups: builtins.filter (group: builtins.hasAttr group config.users.groups) groups;
 in {
-  users.users.ghoscht = {
+  imports = builtins.attrValues outputs.nixosModules; #propagates imports downwards
+  users.users.${vars.user} = {
     isNormalUser = true;
     shell = pkgs.fish;
     extraGroups =
@@ -38,5 +42,5 @@ in {
     packages = [pkgs.home-manager];
   };
 
-  home-manager.users.ghoscht = import ../../../../home/ghoscht/${config.networking.hostName}.nix;
+  home-manager.users.${vars.user} = import ../../../home/${vars.user}/${config.networking.hostName}.nix;
 }

vars.nix

@@ -0,0 +1,7 @@
+{
+  # Global variables used in NixOS and HomeManager which will probably never change
+  user = "ghoscht";
+  location = "$HOME/.setup";
+  terminal = "alacritty";
+  editor = "nvim";
+}