From 7dc0664c66608a4aac5cc7a28651d4732be2d092 Mon Sep 17 00:00:00 2001
From: Lan Tian <xuyh0120@outlook.com>
Date: Tue, 9 Dec 2025 23:19:13 -0800
Subject: [PATCH] Allow building unfree kernel modules

---
 flake.nix | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/flake.nix b/flake.nix
index 0c2196b..fde9f62 100644
--- a/flake.nix
+++ b/flake.nix
@@ -59,6 +59,7 @@
         perSystem =
           {
             pkgs,
+            system,
             ...
           }:
           rec {
@@ -67,6 +68,14 @@
 
             # Packages only contain linux-cachyos-* due to Flake schema requirements
             packages = lib.filterAttrs (_: lib.isDerivation) legacyPackages;
+
+            # Allow build unfree modules such as nvidia_x11
+            _module.args.pkgs = lib.mkForce (
+              import inputs.nixpkgs {
+                inherit system;
+                config.allowUnfree = true;
+              }
+            );
           };
 
         flake = {