modified overseer to nebula, setup zfs

flake.nix

@@ -115,10 +115,10 @@
             }
           ];
         };
-        overseer = nixpkgs.lib.nixosSystem {
+        nebula = nixpkgs.lib.nixosSystem {
           inherit specialArgs;
           modules = [
-            ./hosts/overseer
+            ./hosts/nebula
             home-manager.nixosModules.home-manager
             {
               home-manager.extraSpecialArgs = specialArgs;

hosts/common/disks/zfs.nix

@@ -1,76 +0,0 @@
-{device ? throw "Must define a devices, e.g. /dev/sda"}:
-{
-  disko.devices = {
-    disk = {
-      b = {
-        type = "disk";
-        device = "/dev/vdb";
-        content = {
-          type = "gpt";
-          partitions = {
-            zfs = {
-              size = "100%";
-              content = {
-                type = "zfs";
-                pool = "zroot";
-              };
-            };
-          };
-        };
-      };
-      c = {
-        type = "disk";
-        device = "/dev/vdc";
-        content = {
-          type = "gpt";
-          partitions = {
-            zfs = {
-              size = "100%";
-              content = {
-                type = "zfs";
-                pool = "zroot";
-              };
-            };
-          };
-        };
-      };
-    };
-    zpool = {
-      zroot = {
-        type = "zpool";
-        mode = "mirror";
-        rootFsOptions = {
-          compression = "zstd";
-          "com.sun:auto-snapshot" = "false";
-        };
-        mountpoint = "/";
-        postCreateHook = "zfs list -t snapshot -H -o name | grep -E '^zroot@blank$' || zfs snapshot zroot@blank";
-
-        datasets = {
-          zfs_fs = {
-            type = "zfs_fs";
-            mountpoint = "/zfs_fs";
-            options."com.sun:auto-snapshot" = "true";
-          };
-          encrypted = {
-            type = "zfs_fs";
-            options = {
-              mountpoint = "none";
-              encryption = "aes-256-gcm";
-              keyformat = "passphrase";
-              keylocation = "file:///tmp/secret.key";
-            };
-            # use this to read the key during boot
-            # postCreateHook = ''
-            #   zfs set keylocation="prompt" "zroot/$name";
-            # '';
-          };
-          "encrypted/test" = {
-            type = "zfs_fs";
-            mountpoint = "/zfs_crypted";
-          };
-        };
-      };
-    };
-  };
-}

hosts/nebula/default.nix

@@ -2,7 +2,7 @@
 let
   # Disko setup
   fsType = "btrfs"; # one of ext4 or btrfs. Use btrfs if using impermanence
-  dev = "/dev/vda"; # depends on target hardware
+  dev = "/dev/sda"; # depends on target hardware
   encrypted = false; # currrently only applies to btrfs
   btrfsMountDevice = if encrypted then "/dev/mapper/crypted" else "/dev/root_vg/root";
   user = "admin";
@@ -17,40 +17,28 @@ in
       inputs.disko.nixosModules.disko
       (import ../common/disks { device = dev; fsType = fsType; encrypted = encrypted; })
 
-      # Impermanence
-      inputs.impermanence.nixosModules.impermanence
-      (import ../common/disks/btrfs-impermanence.nix { btrfsMountDevice = btrfsMountDevice; lib = lib; })
-
       # Import core options
       ./hardware-configuration.nix
       ../common/core
 
       # Import optional options
-      ../common/optional/persistence.nix
       ../common/optional/openssh.nix
 
     ];
 
-  boot = {
-    blacklistedKernelModules = [ "snd_hda_intel" "snd_soc_skl" ];
-    kernelPackages = pkgs.linuxPackagesFor pkgs.linux_latest;
-    loader = {
-      systemd-boot.enable = true;
-      efi.canTouchEfiVariables = true;
-      timeout = 3;
-    };
-  };
-
-  hardware.firmware = [
-    pkgs.sof-firmware
-  ];
+  boot.loader.grub.enable = true;
+  boot.loader.grub.device = "/dev/sda"; 
 
   networking = {
-    hostName = "overseer";
+    hostName = "nebula";
     networkmanager.enable = true;
     enableIPv6 = false;
   };
 
+  boot.supportedFilesystems = [ "zfs" ];
+  boot.zfs.forceImportRoot = false;
+  networking.hostId = "18aec5d7"
+
   services.libinput.enable = true;
 }