Add custom options

customOptions.nix

@@ -0,0 +1,8 @@
+{lib,...}:{
+
+options.my.highDPI = lib.mkOption {
+    description = "If the device has a high DPI screen";
+    default = true;
+    type = lib.types.bool;
+  };
+}

home-manager/default.nix

@@ -3,6 +3,7 @@
 let
   home-manager = (import ../nix/sources.nix).home-manager;
   unstable = import <nixos-unstable> {};
+  fontSize = hiDPI : if hiDPI then "FiraCode:size=14" else "FiraCode:size=8";
 in
 {
   imports = [
@@ -277,7 +278,7 @@ in
       settings = {
         main = {
           term = "xterm-256color";
-          font = "FiraCode:size=14";
+          font = fontSize config.my.highDPI;
         };
         scrollback = { lines = 100000; };
         colors = {

machines/milhouse/configuration.nix

@@ -18,5 +18,8 @@
 
   system.stateVersion = "21.11"; # Did you read the comment?
 
+  # Only 1080p :(
+  my.highDPI = false;
+
 }
 

roles/all.nix

@@ -17,8 +17,8 @@
     ../modules/borgbackup.nix
 
     ../secrets/remote-builder.nix
-
     ../users/fleaz.nix
+    ../customOptions.nix
   ];
 
   # Set your time zone.