Change zfs mount property to legacy

hardware-configuration.nix

@@ -0,0 +1,59 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, ... }:
+
+{
+  imports =
+    [ <nixpkgs/nixos/modules/installer/scan/not-detected.nix>
+    ];
+
+  boot.initrd.availableKernelModules = [ "usb_storage" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/44444444-4444-4444-8888-888888888888";
+      fsType = "ext4";
+    };
+
+  fileSystems."/vault" =
+    { device = "vault";
+      fsType = "zfs";
+    };
+
+  fileSystems."/vault/backups" =
+    { device = "vault/backups";
+      fsType = "zfs";
+    };
+
+  fileSystems."/vault/backups/monolith" =
+    { device = "vault/backups/monolith";
+      fsType = "zfs";
+    };
+
+  fileSystems."/vault/backups/zion" =
+    { device = "vault/backups/zion";
+      fsType = "zfs";
+    };
+
+  fileSystems."/vault/git" =
+    { device = "vault/git";
+      fsType = "zfs";
+    };
+
+  fileSystems."/vault/nextcloud" =
+    { device = "vault/nextcloud";
+      fsType = "zfs";
+    };
+
+  fileSystems."/vault/syncthing" =
+    { device = "vault/syncthing";
+      fsType = "zfs";
+    };
+
+  swapDevices = [ ];
+
+  nix.maxJobs = lib.mkDefault 4;
+}