feat: add global variables for nix configs

common/default.nix

@@ -1,10 +1,20 @@
-{ config, home-manager, lib, nixpkgs, nur, nix-melt, nurl, pkgs, ... }: {
-
+{ config
+, home-manager
+, lib
+, nixpkgs
+, nur
+, nix-melt
+, nurl
+, pkgs
+, ...
+}: {
   imports = [
     home-manager.nixosModules.default
     ./modules/programs.nix
     ./modules/locale.nix
     ./overlays
+
+    ./hostvars.nix
   ];
 
   nixpkgs.config.allowUnfree = true;
@@ -38,6 +48,11 @@
         ./modules/bash
         ./modules/git
         ./modules/neovim
+
+        ./hostvars.nix
+        ({ osConfig, ... }: {
+          services.hostvars = osConfig.services.hostvars;
+        })
       ];
 
       home.packages = [

common/hostvars.nix

@@ -0,0 +1,21 @@
+{ lib, ... }: {
+  options.services.hostvars = with lib; {
+    username = mkOption {
+      description = ''
+        Username that was defined at the initial setup process
+      '';
+	    type = types.nullOr types.str;
+    };
+
+    configDir = mkOption {
+      description = ''
+        The path to where most of the hosts' configs are in the .nix folder
+      '';
+      type = types.nullOr types.str;
+    };
+
+    fontSize = mkOption {
+      type = types.nullOr types.float;
+    };
+  };
+}

hosts/binto/configuration.nix

@@ -10,6 +10,11 @@
     ./modules/nix-gaming.nix
   ];
 
+  services.hostvars = {
+    username = "matt";
+    fontSize = 10;
+  };
+
   networking = {
     hostName = "binto";
     networkmanager.enable = true;
@@ -75,7 +80,6 @@
         ../../modules/dconf.nix
         ../../modules/firefox
       ];
-      programs.alacritty.settings.font.size = 10;
 
       home.stateVersion = "23.11";
     };

hosts/wim/configuration.nix

@@ -13,6 +13,12 @@
     ./modules/security.nix
   ];
 
+  services.hostvars = {
+    username = "matt";
+    configDir = "/home/matt/.nix/hosts/wim/config";
+    fontSize = 12.5;
+  };
+
   users.users.matt = {
     isNormalUser = true;
     extraGroups = [ "wheel" "input" "uinput" "adm" "mlocate" "video" "libvirtd" ];

hosts/wim/home/hyprland.nix

@@ -1,13 +1,12 @@
 { pkgs, config, hyprland, hyprgrass, ags, nixpkgs-wayland, ... }: let
   waypkgs = nixpkgs-wayland.packages.x86_64-linux;
 
-  configDir = (import ../vars.nix).configDir;
+  configDir = config.services.hostvars.configDir;
   symlink = config.lib.file.mkOutOfStoreSymlink;
 
   gset = pkgs.gsettings-desktop-schemas;
   polkit = pkgs.plasma5Packages.polkit-kde-agent;
-in
-{
+in {
   imports = [
     ags.homeManagerModules.default
   ];

hosts/wim/home/theme.nix

@@ -1,5 +1,5 @@
-{ pkgs, lib, ... }: let
-  font-size = 12;
+{ pkgs, lib, config, ... }: let
+  fontSize = config.services.hostvars.fontSize;
   dracula-xresources = pkgs.fetchFromGitHub {
     owner = "dracula";
     repo = "xresources";
@@ -35,7 +35,7 @@ in
 
     font = {
       name = "Sans Serif";
-      size = font-size;
+      size = fontSize;
     };
   };
 
@@ -53,8 +53,8 @@ in
   xdg.configFile = let
     qtconf = ''
       [Fonts]
-      fixed="Sans Serif,${lib.strings.floatToString font-size},-1,5,50,0,0,0,0,0"
-      general="Sans Serif,${lib.strings.floatToString font-size},-1,5,50,0,0,0,0,0"
+      fixed="Sans Serif,${lib.strings.floatToString fontSize},-1,5,50,0,0,0,0,0"
+      general="Sans Serif,${lib.strings.floatToString fontSize},-1,5,50,0,0,0,0,0"
 
       [Appearance]
       icon_theme=Flat-Remix-Violet-Dark

hosts/wim/modules/dotfiles.nix

@@ -1,5 +1,5 @@
 { config, pkgs, ... }: let
-  configDir = (import ../vars.nix).configDir;
+  configDir = config.services.hostvars.configDir;
   symlink = config.lib.file.mkOutOfStoreSymlink;
 in
 {

hosts/wim/vars.nix

@@ -1,3 +0,0 @@
-{
-  configDir = "/home/matt/.nix/hosts/wim/config";
-}

modules/alacritty.nix

@@ -1,6 +1,6 @@
 # Home-manager module
 
-{ lib, ... }: {
+{ lib, config, ... }: {
   programs.alacritty = {
     enable = true;
     settings = {
@@ -38,7 +38,7 @@
           family = "JetBrainsMono Nerd Font";
           style = "Italic";
         };
-        size = lib.mkDefault 12.5;
+        size = config.services.hostvars.fontSize;
       };
 
       # https://github.com/dracula/alacritty/blob/05faff15c0158712be87d200081633d9f4850a7d/dracula.yml