Configure monitor per host

systems/balrog/default.nix

@@ -67,5 +67,13 @@
   };
   hardware.bluetooth.enable = true;
   services.blueman.enable = true;
+
+  home-manager.users.avravels.home.hyprland.monitors = [
+    {
+      output = "eDP-1";
+      mode = "1920x1200";
+    }
+  ];
+
   system.stateVersion = "25.11"; # Did you read the comment?
 }

systems/modules/home/wm/hyprland.nix

@@ -9,13 +9,27 @@ let
 in
 
 {
-  options.home.hyprland = {
-    execOnce = lib.mkOption {
-      type = lib.types.listOf lib.types.str;
-      default = [ "waybar" ];
-      description = "Commands to run once when Hyprland starts (maps to Hyprland `exec-once`).";
-    };
+  options.home.hyprland.monitors = lib.mkOption {
+    type = lib.types.listOf (lib.types.submodule {
+      options = {
+        output = lib.mkOption { type = lib.types.str; };
+        mode = lib.mkOption {
+          type = lib.types.str;
+          default = "preferred";
+        };
+        position = lib.mkOption {
+          type = lib.types.str;
+          default = "auto";
+        };
+        scale = lib.mkOption {
+          type = lib.types.number;
+          default = 1;
+        };
+      };
+    });
+    default = [ ];
   };
+
   config = {
     home.packages = with pkgs; [
       bzmenu
@@ -33,6 +47,12 @@ in
           mkLuaInline = lib.generators.mkLuaInline;
           toLua = lib.generators.toLua;
           mkArgs = args: { _args = args; };
+          defaultMonitor = {
+            output = "";
+            mode = "preferred";
+            position = "auto";
+            scale = 1;
+          };
           bind =
             keys: dispatcher: options:
             mkArgs [
@@ -166,18 +186,12 @@ in
             (mkLuaInline ''
               function()
                 hl.exec_cmd("waybar")
-                hl.monitor({
-                  output = "",
-                  mode = "preferred",
-                  position = "auto",
-                  scale = 1,
-                })
-                hl.monitor({
-                  output = "eDP-1",
-                  mode = "1920x1200",
-                  position = "auto",
-                  scale = 1,
-                })
+
+                hl.monitor(${lib.generators.toLua {} defaultMonitor})
+
+                ${lib.concatMapStringsSep "\n"
+                  (m: "hl.monitor(${lib.generators.toLua {} m})")
+                cfg.monitors}
               end'')
           ];
         };