Update hardware info, disko.

nodes/lappy/configuration.nix

@@ -11,6 +11,7 @@
     ];
 
   # Use the systemd-boot EFI boot loader.
+  nixpkgs.hostPlatform = "x86_64-linux";
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
 
@@ -101,7 +102,7 @@
   # Copy the NixOS configuration file and link it from the resulting system
   # (/run/current-system/configuration.nix). This is useful in case you
   # accidentally delete configuration.nix.
-  system.copySystemConfiguration = true;
+  # system.copySystemConfiguration = true;
 
   # This option defines the first version of NixOS you have installed on this particular machine,
   # and is used to maintain compatibility with application data (e.g. databases) created on older NixOS versions.

nodes/lappy/disko.nix

@@ -0,0 +1,86 @@
+{
+  disko.devices = {
+    disk = {
+      nvme1n1 = {
+        type = "disk";
+        device = "/dev/nvme0n1";
+        content = {
+          type = "gpt";
+          partitions = {
+            ESP = {
+              label = "boot";
+              name = "ESP";
+              size = "4500M";
+              type = "EF00";
+              content = {
+                type = "filesystem";
+                format = "vfat";
+                mountpoint = "/boot";
+                mountOptions = [ 
+                  "umask=0077" 
+                  "defaults"
+                ];
+              };
+            };
+            luks = {
+              size = "100%";
+              label = "luks";
+              content = {
+                type = "luks";
+                name = "cryptroot";
+                # disable settings.keyFile if you want to use interactive password entry
+                #passwordFile = "/tmp/secret.key"; # Interactive
+                settings = {
+                  allowDiscards = true;
+                  #keyFile = "/tmp/secret.key";
+                };
+                
+                #additionalKeyFiles = [ "/tmp/additionalSecret.key" ];
+                content = {
+                  type = "btrfs";
+                  extraArgs = [ "-L" "nixos" "-f" ];
+                  subvolumes = {
+                    "/root" = {
+                      mountpoint = "/";
+                      mountOptions = [
+                        "subvol=root"
+                        "compress=zstd"
+                        "noatime"
+                      ];
+                    };
+                    "/nix" = {
+                      mountpoint = "/nix";
+                      mountOptions = [
+                        "subvol=nix"
+                        "compress=zstd"
+                        "noatime"
+                      ];
+                    };
+                    "/persist" = {
+                      mountpoint = "/persist";
+                      mountOptions = [
+                        "subvol=persist"
+                        "compress=zstd"
+                        "noatime"
+                      ];
+                    };
+                    "/log" = {
+                      mountpoint = "/var/log";
+                      mountOptions = [
+                        "subvol=log"
+                        "compress=zstd"
+                        "noatime"
+                      ];
+                    };
+                  };
+                };
+              };
+            };
+          };
+        };
+      };
+    };
+  };
+  fileSystems."/nix/persist".neededForBoot = true;
+  fileSystems."/var/log".neededForBoot = true;
+}

nodes/lappy/hardware-configuration.nix

@@ -13,34 +13,6 @@
   boot.kernelModules = [ "kvm-intel" ];
   boot.extraModulePackages = [ ];
 
-  fileSystems."/" =
-    { device = "tmpfs";
-      fsType = "tmpfs";
-    };
-
-  fileSystems."/iso" =
-    { device = "/dev/disk/by-uuid/1980-01-01-00-00-00-00";
-      fsType = "iso9660";
-    };
-
-  fileSystems."/nix/.ro-store" =
-    { device = "/iso/nix-store.squashfs";
-      fsType = "squashfs";
-      options = [ "loop" ];
-    };
-
-  fileSystems."/nix/.rw-store" =
-    { device = "tmpfs";
-      fsType = "tmpfs";
-    };
-
-  fileSystems."/nix/store" =
-    { device = "overlay";
-      fsType = "overlay";
-    };
-
-  swapDevices = [ ];
-
   # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
   # (the default) this is the recommended approach. When using systemd-networkd it's
   # still possible to use this option, but it's recommended to use it in conjunction

nodes/lappy/node.nix

@@ -1,4 +1,4 @@
 {
   os = "nixos";
-  channel = "25.05";
+  channel = "stable";
 }