Disko transition for non encrypted systems

hosts/prophet/default.nix

@@ -2,6 +2,7 @@
 {
   imports = [
     ./boot
+    ./disko
     ./filesystems
     ./hardware
     ./users

hosts/prophet/disko/default.nix

@@ -0,0 +1,84 @@
+{ config, disko, ... }:
+{
+  imports = [ disko.nixosModules.disko ];
+
+  disko.devices = {
+    disk = {
+      "${config.networking.hostName}" = {
+        type = "disk";
+        device = "/dev/nvme0n1";
+        content = {
+          type = "gpt";
+          partitions = {
+            ESP = {
+              priority = 1;
+              size = "2G";
+              type = "EF00";
+              content = {
+                type = "filesystem";
+                format = "vfat";
+                mountpoint = "/boot";
+                mountOptions = [ "umask=0077" ];
+              };
+            };
+            main = {
+              size = "100%";
+	      content = {
+                type = "lvm_pv";
+                vg = "${config.networking.hostName}";
+              };
+            };
+          };
+        };
+      };
+    };
+
+    lvm_vg = {
+      "${config.networking.hostName}" = {
+        type = "lvm_vg";
+        lvs = {
+          root = {
+            size = "100%";
+            content = {
+              type = "btrfs";
+              extraArgs = [ "-f" ];
+              subvolumes = {
+                "/root" = {
+                  mountpoint = "/";
+                  mountOptions = [ "compress=zstd" "noatime" "ssd" ];
+                };
+                "/prev" = {
+                  mountpoint = "/prev";
+                  mountOptions = [ "compress=zstd" "noatime" "ssd" "noexec" ];
+                };
+                "/nix" = {
+                  mountpoint = "/nix";
+                  mountOptions = [ "compress=zstd" "noatime" "ssd" ];
+                };
+
+                # Impermanence
+                "/persist" = {
+                  mountpoint = "/persist";
+                  mountOptions = [ "compress=zstd" "noatime" "ssd" ];
+                };
+                "/persist/.snapshots" = { };
+                "/persist/home/${config.sysusers.main}" = { };
+                "/persist/home/${config.sysusers.main}/.snapshots" = { };
+              };
+            };
+          };
+          swap = {
+            size = "2G";
+            content = {
+              type = "swap";
+              discardPolicy = "both";
+            };
+          };
+        };
+      };
+    };
+  };
+
+  # Needed for impermanence
+  fileSystems."/persist".neededForBoot = true;
+}

hosts/prophet/filesystems/default.nix

@@ -1,42 +1,11 @@
 { ... }:
 {
   fileSystems = {
-    "/" = {
-      device = "/dev/disk/by-uuid/e50e186d-e5bc-40b0-9cd7-43b609cde3ea";
-      fsType = "btrfs";
-      options = [ "subvol=root" ];
-    };
-    "/prev" = {
-      device = "/dev/disk/by-uuid/e50e186d-e5bc-40b0-9cd7-43b609cde3ea";
-      fsType = "btrfs";
-      options = [ "subvol=prev" ];
-    };
-    "/nix" = {
-      device = "/dev/disk/by-uuid/e50e186d-e5bc-40b0-9cd7-43b609cde3ea";
-      fsType = "btrfs";
-      options = [ "subvol=nix" ];
-    };
-    "/boot" = {
-      device = "/dev/disk/by-uuid/7C94-8C9A";
-      fsType = "vfat";
-      options = [ "umask=0077" ];
-    };
-
-    # Impermanence and subvols
-    "/persist" = {
-      device = "/dev/disk/by-uuid/e50e186d-e5bc-40b0-9cd7-43b609cde3ea";
-      fsType = "btrfs";
-      neededForBoot = true;
-      options = [ "subvol=persist" ];
-    };
+    # Misc bulk storage
     "/export/Bulk" = {
       device = "/dev/disk/by-uuid/ef465845-cc56-4db5-9260-8ae515eb025e";
       fsType = "btrfs";
       noCheck = true;
     };
   };
-
-  swapDevices = [
-    { device = "/dev/disk/by-uuid/7e8c773d-c8f4-4dd8-a835-bde78e5b6760"; }
-  ];
 }