From fe39db683a1b4b128296d9810d8382e26dff7392 Mon Sep 17 00:00:00 2001
From: kenji <kenji@hakase>
Date: Fri, 26 Dec 2025 13:26:27 -0600
Subject: [PATCH] add: backlight.nix

---
 modules/system/default.nix | 1 +
 system/backlight.nix       | 9 +++++++++
 2 files changed, 10 insertions(+)
 create mode 100644 system/backlight.nix

diff --git a/modules/system/default.nix b/modules/system/default.nix
index a5b6919..6ab7d0a 100644
--- a/modules/system/default.nix
+++ b/modules/system/default.nix
@@ -1,6 +1,7 @@
 {pkgs, ...}: {
   imports = [
     ../../system/time.nix
+    ../../system/backlight.nix
     ../../system/boot.nix
     ../../system/amd.nix
     ../../system/hardware.nix
diff --git a/system/backlight.nix b/system/backlight.nix
new file mode 100644
index 0000000..8ca384f
--- /dev/null
+++ b/system/backlight.nix
@@ -0,0 +1,9 @@
+{
+  pkgs,
+  myConfig,
+  ...
+}: {
+  hardware.i2c.enable = true;
+  environment.systemPackages = with pkgs; [ddcutil];
+  users.users.${myConfig.nixos.username}.extraGroups = ["i2c"];
+}