diff --git a/hosts/randolph/configuration.nix b/hosts/randolph/configuration.nix
index 4650d6e..72d8d72 100644
--- a/hosts/randolph/configuration.nix
+++ b/hosts/randolph/configuration.nix
@@ -7,6 +7,7 @@
 {
   imports = [ # Include the results of the hardware scan.
     ./hardware-configuration.nix
+    ../../snippets/samba.nix
   ];
 
   ################################################
@@ -17,9 +18,20 @@
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
 
-  boot.kernelPackages = pkgs.linuxPackages_latest;
+  # boot.kernelPackages = pkgs.linuxPackagesFor (pkgs.linux_6_6.override {
+  #   argsOverride = rec {
+  #     src = pkgs.fetchurl {
+  #           url = "mirror://kernel/linux/kernel/v6.x/linux-${version}.tar.xz";
+  #           sha256 = "sha256-2NlUBPje63/2mSwN+FUCUGLp6Bgrym2qJ+8uknXSd0k=";
+  #     };
+  #     version = "6.12.23";
+  #     modDirVersion = "6.12.23";
+  #     };
+  # });
+
   boot.kernelParams = [
-      "amdgpu.sg_display=0"
+      # "amdgpu.sg_display=0"
+      # "amdgpu.dcdebugmask=0x10"
   ];
 
   # Enable flakes.
@@ -85,6 +97,18 @@
 
   # Enable graphics.
   hardware.graphics.enable = true;
+  # hardware.graphics.package = (
+  #   pkgs.mesa.overrideAttrs rec {
+  #    version = "24.3.4";
+
+  #    src = pkgs.fetchFromGitLab {
+  #      domain = "gitlab.freedesktop.org";
+  #      owner = "mesa";
+  #      repo = "mesa";
+  #      rev = "mesa-${version}";
+  #      hash = "sha256-1RUHbTgcCxdDrWjqB0EG4Ny/nwdjQHHpyPauiW/yogU=";
+  #    };
+  # });
 
   # Allow users in group "video" to modify backlight
   # services.udev.extraRules = ''
@@ -95,6 +119,12 @@
   # Enable CUPS to print documents.
   services.printing.enable = true;
 
+  # Enable SANE for scanning.
+  hardware.sane = {
+    enable = true;
+    extraBackends = [ pkgs.epkowa ];
+  };
+
   # Enable udisks (handles storage devices, e.g. usb flash drives)
   services.udisks2.enable = true;
 
@@ -125,7 +155,7 @@
   users.users.alice = {
     isNormalUser = true;
     home = "/home/alice";
-    extraGroups = [ "wheel" "networkmanager" "video" ]
+    extraGroups = [ "wheel" "networkmanager" "video" "scanner" "lp" ]
       ++ [ "adbusers" ]; # Enable 'sudo' for the user.
     initialPassword = "manysuchcases";
     shell = pkgs.zsh;
diff --git a/snippets/samba.nix b/snippets/samba.nix
new file mode 100644
index 0000000..24bdf27
--- /dev/null
+++ b/snippets/samba.nix
@@ -0,0 +1,7 @@
+# for configuration.nix
+{ config, lib, pkgs, ... }:
+{
+  services.samba = {
+    enable = true;
+  };
+}