add portable ssd, fix laptop eval

modules/hardware/amd-gpu.nix

@@ -0,0 +1,12 @@
+{ lib, config, pkgs, inputs, pkgsVersion, ... }:
+let cfg = config.custom.hardware.amd-gpu;
+in {
+  options.custom.hardware.amd-gpu = {
+    enable = lib.mkEnableOption "Enables amd gpus";
+  };
+
+  config = lib.mkIf cfg.enable {
+    boot.initrd.kernelModules = [ "amdgpu" ];
+    services.xserver.videoDrivers = [ "amdgpu" ];
+  };
+}