From ec1368950ea455c285b41c070712348f13833e70 Mon Sep 17 00:00:00 2001
From: Manuel Thalmann <m@nuth.ch>
Date: Fri, 23 Aug 2024 18:11:48 +0200
Subject: [PATCH] Allow OS specific settings

---
 lib/modules/os.nix | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 lib/modules/os.nix

diff --git a/lib/modules/os.nix b/lib/modules/os.nix
new file mode 100644
index 00000000..15783edf
--- /dev/null
+++ b/lib/modules/os.nix
@@ -0,0 +1,38 @@
+{ lib, ... }:
+  let
+    inherit (lib)
+      mkOption
+      types
+    ;
+  in {
+    options = {
+      valhalla = mkOption {
+        type = types.submodule (
+          { extendModules, ... }:
+            let
+              osVariant = extendModules { };
+              linuxVariant = osVariant.extendModules { };
+              windowsVariant = osVariant.extendModules { };
+            in {
+              options = {
+                linux = mkOption {
+                  inherit (linuxVariant) type;
+                  description = "The Linux specific configuration.";
+                  default = {};
+                  visible = "shallow";
+                };
+
+                windows = mkOption {
+                  inherit (windowsVariant) type;
+                  description = "The Windows specific configuration.";
+                  default = {};
+                  visible = "shallow";
+                };
+              };
+            });
+
+        description = "Configuration for PortValhalla.";
+        default = {};
+      };
+    };
+  }
\ No newline at end of file