feat: migrate node

hosts/node/disko.nix

@@ -1,6 +1,7 @@
 {
   device ? throw "Set this to the disk device, e.g. /dev/nvme0n1",
   device2 ? throw "Set this to the disk device2, e.g. /dev/nvme1n1",
+  device3 ? throw "Set this to the disk device3, e.g. /dev/nvme1n1",
   ...
 }: {
   disko.devices = {
@@ -45,6 +46,23 @@
           };
         };
       };
+      hdd = {
+        type = "disk";
+        device = "${device3}";
+        content = {
+          type = "gpt";
+          partitions = {
+            data = {
+              size = "100%";
+              content = {
+                type = "filesystem";
+                format = "ext4";
+                mountpoint = "/mnt/hdd";
+              };
+            };
+          };
+        };
+      };
     };
     mdadm = {
       raid0 = {