wip(rpi-5): working on rpi-5 server support

hardwares/rpi-5/disks.nix

@@ -0,0 +1,64 @@
+{ inputs, ... }:
+{
+  imports = [ inputs.disko.nixosModules.disko ];
+  disko.devices = {
+    disk = {
+      main = {
+        device = "/dev/mmcblk0";
+        type = "disk";
+        content = {
+          type = "gpt";
+          partitions = {
+            boot = {
+              name = "boot";
+              size = "1M";
+              type = "EF02";
+            };
+            ESP = {
+              name = "ESP";
+              priority = 1;
+              size = "4G";
+              type = "EF00";
+              content = {
+                type = "filesystem";
+                format = "vfat";
+                mountpoint = "/boot";
+                mountOptions = [ "umask=0077" ];
+              };
+            };
+            plainSwap = {
+              size = "8G";
+              content = {
+                type = "swap";
+                discardPolicy = "both"; # Both "once" and page discard policies
+              };
+            };
+            root = {
+              size = "100%";
+              content = {
+                type = "btrfs";
+                extraArgs = [ "-f" ]; # Override existing partition
+                # Subvolumes must set a mountpoint in order to be mounted,
+                # unless their parent is mounted
+                subvolumes = {
+                  # Subvolume name is different from mountpoint
+                  "@" = {
+                    mountpoint = "/";
+                  };
+                  # Subvolume name is the same as the mountpoint
+                  "@home" = {
+                    mountpoint = "/home";
+                  };
+                  # Parent is not mounted so the mountpoint must be set
+                  "@nix" = {
+                    mountpoint = "/nix";
+                  };
+                };
+              };
+            };
+          };
+        };
+      };
+    };
+  };
+}