refactor: complete rewrite

modules/nixos/hardware/options.nix

@@ -0,0 +1,101 @@
+{
+  lib,
+  config,
+  ...
+}: let
+  inherit (lib) mkOption mkEnableOption;
+  inherit (lib.types) nullOr enum bool submodule listOf int str;
+  inherit (config.ooknet) hardware;
+in {
+  options.ooknet.hardware = {
+    gpu = {
+      type = mkOption {
+        type = nullOr (enum ["intel" "amd" "nvidia"]);
+        default = null;
+      };
+    };
+
+    cpu = {
+      type = mkOption {
+        type = nullOr (enum ["intel" "amd"]);
+        default = null;
+      };
+      amd.pstate.enable = mkEnableOption "";
+    };
+
+    features = mkOption {
+      type = listOf (enum [
+        "audio"
+        "video"
+        "bluetooth"
+        "backlight"
+        "battery"
+        "ssd"
+        "printing"
+        "fingerprint"
+      ]);
+      default = ["ssd"];
+    };
+
+    # monitor module inspired by misterio77
+    # includes the addition of transform option
+    monitors = mkOption {
+      type = listOf (submodule {
+        options = {
+          name = mkOption {
+            type = str;
+            example = "DP-1";
+          };
+          primary = mkOption {
+            type = bool;
+            default = false;
+          };
+          width = mkOption {
+            type = int;
+            example = 1920;
+          };
+          height = mkOption {
+            type = int;
+            example = 1080;
+          };
+          refreshRate = mkOption {
+            type = int;
+            default = 60;
+          };
+          x = mkOption {
+            type = int;
+            default = 0;
+          };
+          y = mkOption {
+            type = int;
+            default = 0;
+          };
+          transform = mkOption {
+            type = int;
+            default = 0;
+          };
+          enabled = mkOption {
+            type = bool;
+            default = true;
+          };
+          workspace = mkOption {
+            type = nullOr str;
+            default = null;
+          };
+        };
+      });
+      default = [];
+    };
+  };
+
+  config = {
+    assertions = [
+      {
+        assertion =
+          ((lib.length hardware.monitors) != 0)
+          -> ((lib.length (lib.filter (m: m.primary) hardware.monitors)) == 1);
+        message = "At least 1 primary monitor is required";
+      }
+    ];
+  };
+}