swap to systemd-boot

nixos/profiles/hw-supermicro.nix

@@ -1,21 +1,19 @@
 { lib, pkgs, ... }:
-with lib;
 {
   boot = {
+    # for managing/mounting nfs
+    supportedFilesystems = [ "nfs" ];
+
     loader = {
-      grub = {
+      systemd-boot.enable = true;
-        enable = true;
-        zfsSupport = true;
-        device = "nodev";
-        mirroredBoots = [
-          { devices = [ "nodev" ]; path = "/boot"; }
-        ];
-      };
       efi = {
         canTouchEfiVariables = true;
       };
     };
   };
 
+  networking = {
+    networkmanager.enable = true;
+  };
   nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
 }