initial config commit

modules/nixos/features/amd-gpu.nix

@@ -0,0 +1,26 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+let
+  feature = "amd-gpu";
+in
+{
+  config = lib.mkIf config.${feature}.enable {
+
+    # load graphics drivers before anything else
+    boot.initrd.kernelModules = [ "amdgpu" ];
+
+    hardware.graphics = {
+      enable = true;
+      enable32Bit = true;
+      extraPackages = with pkgs; [ amdvlk ];
+    };
+
+    services.xserver.videoDrivers = [ "amdgpu" ];
+  };
+
+  options.${feature}.enable = lib.mkEnableOption "enables ${feature}";
+}