diff --git a/flake.nix b/flake.nix
index 82ed057..e272c9e 100644
--- a/flake.nix
+++ b/flake.nix
@@ -7,7 +7,7 @@
     nvf.url = "git+https://gitea.homework.zip/five/neovim";
 
     home-manager = {
-      url = "github:nix-community/home-manager/master"; # Optional, use master for latest HM
+      url = "github:nix-community/home-manager/master";
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
@@ -17,7 +17,7 @@
     };
 
     stylix = {
-      url = "github:danth/stylix"; # stylix follows unstable automatically
+      url = "github:danth/stylix";
       inputs.nixpkgs.follows = "nixpkgs";
     };
     rocm = {
diff --git a/nixos/system/system-packages.nix b/nixos/system/system-packages.nix
index 9a0ea1d..985b863 100644
--- a/nixos/system/system-packages.nix
+++ b/nixos/system/system-packages.nix
@@ -9,6 +9,8 @@
     mesa
     libxkbcommon
     clinfo
+    pkg-config
+    alsa-lib.dev
   ];
 
   hardware.opengl.extraPackages = with pkgs; [
diff --git a/nixos/system/system-settings.nix b/nixos/system/system-settings.nix
index 5e37966..c4e7eb1 100644
--- a/nixos/system/system-settings.nix
+++ b/nixos/system/system-settings.nix
@@ -28,4 +28,6 @@
   ];
 
   services.upower.enable = true;
+
+  hardware.alsa.enablePersistence = true;
 }