From 585a398dbcfe215a9345612b127510a121fdd656 Mon Sep 17 00:00:00 2001
From: Nojus <git@nojus.org>
Date: Tue, 15 Jul 2025 00:24:57 +0200
Subject: [PATCH] module.nix: init

---
 flake.nix  |  1 +
 module.nix | 26 ++++++++++++++++++++++++++
 2 files changed, 27 insertions(+)
 create mode 100644 module.nix

diff --git a/flake.nix b/flake.nix
index 7e14bb7..58093a4 100644
--- a/flake.nix
+++ b/flake.nix
@@ -6,5 +6,6 @@
     pkgs = import nixpkgs { inherit system; };
   in {
     packages.${system}.default = pkgs.callPackage ./default.nix {};
+    nixosModules.default = import ./module.nix;
   };
 }
diff --git a/module.nix b/module.nix
new file mode 100644
index 0000000..d91ad93
--- /dev/null
+++ b/module.nix
@@ -0,0 +1,26 @@
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.services.lsfg-vk;
+  lsfg-vk = pkgs.callPackage ./default.nix {};
+in
+{
+  options = {
+    services.lsfg-vk = {
+      enable = lib.mkEnableOption "Lossless Scaling Frame Generation Vulkan layer";
+      
+      package = lib.mkOption {
+        type = lib.types.package;
+        description = "The lsfg-vk package to use";
+        default = lsfg-vk;
+      };
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    environment.systemPackages = [ cfg.package ];
+
+    # Installs the Vulkan implicit layer system-wide
+    environment.etc."vulkan/implicit_layer.d/VkLayer_LS_frame_generation.json".source = 
+      "${cfg.package}/share/vulkan/implicit_layer.d/VkLayer_LS_frame_generation.json";
+  };
+}