Use disko 'single-disk-ext4' template for vm host

hosts/vm/configuration.nix

@@ -18,15 +18,8 @@
 
   nix.settings.experimental-features = [ "nix-command" "flakes" ];
 
-  # These are needed for ZFS
 
-  networking.hostId = "25698a58";
-  # https://discourse.nixos.org/t/zfs-with-disko-faluire-to-import-zfs-pool/61988/3
-  boot = {
-    zfs = {
-        devNodes = "/dev/disk/by-uuid";
-      };
-  };
+  disko.devices.disk.main.device = "/dev/vda";
 
   programs.git.enable = true;
   programs.firefox.enable = true;

hosts/vm/disk.nix

@@ -1 +1,42 @@
-import ../../modules/disko.zfs-encrypted-root.nix
+# USAGE in your configuration.nix.
+# Update devices to match your hardware.
+# {
+#  imports = [ ./disko-config.nix ];
+#  disko.devices.disk.main.device = "/dev/sda";
+# }
+{
+  disko.devices = {
+    disk = {
+      main = {
+        type = "disk";
+        content = {
+          type = "gpt";
+          partitions = {
+            boot = {
+              size = "1M";
+              type = "EF02"; # for grub MBR
+            };
+            ESP = {
+              size = "1G";
+              type = "EF00";
+              content = {
+                type = "filesystem";
+                format = "vfat";
+                mountpoint = "/boot";
+                mountOptions = [ "umask=0077" ];
+              };
+            };
+            root = {
+              size = "100%";
+              content = {
+                type = "filesystem";
+                format = "ext4";
+                mountpoint = "/";
+              };
+            };
+          };
+        };
+      };
+    };
+  };
+}