add disko

systems/x86_64-linux/earth/default.nix

@@ -6,7 +6,7 @@
   config,
   ...
 }: {
-  imports = [./hardware-configuration.nix];
+  imports = [./disk-config.nix ./hardware-configuration.nix];
 
   nix.settings = {
     trusted-users = ["zoey"];
@@ -50,8 +50,6 @@
     };
   };
 
-  documentation.man.generateCaches = false;
-
   services.gdm-monitors.enable = true;
 
   specialisation = {

systems/x86_64-linux/earth/disk-config.nix

@@ -0,0 +1,106 @@
+{
+  disko.devices = {
+    disk = {
+      root = {
+        type = "disk";
+        device = "/dev/nvme0n1";
+        content = {
+          type = "gpt";
+          partitions = {
+            ESP = {
+              size = "1G";
+              type = "EF00";
+              content = {
+                type = "filesystem";
+                format = "vfat";
+                mountpoint = "/boot";
+                mountOptions = ["nofail"];
+              };
+            };
+            zfs = {
+              size = "100%";
+              content = {
+                type = "zfs";
+                pool = "zroot";
+              };
+            };
+          };
+        };
+      };
+      backup = {
+        type = "disk";
+        device = "/dev/nvme1n1";
+        content = {
+          type = "gpt";
+          partitions = {
+            zfs = {
+              size = "100%";
+              content = {
+                type = "zfs";
+                pool = "zbackup";
+              };
+            };
+          };
+        };
+      };
+    };
+    zpool = {
+      zroot = {
+        type = "zpool";
+        rootFsOptions = {
+          mountpoint = "none";
+          compression = "zstd";
+          acltype = "posixacl";
+          xattr = "sa";
+          "com.sun:auto-snapshot" = "true";
+        };
+        options.ashift = "12";
+        datasets = {
+          "root" = {
+            type = "zfs_fs";
+            mountpoint = "/";
+          };
+          "root/nix" = {
+            type = "zfs_fs";
+            options.mountpoint = "/nix";
+            mountpoint = "/nix";
+          };
+
+          # README MORE: https://wiki.archlinux.org/title/ZFS#Swap_volume
+          "root/swap" = {
+            type = "zfs_volume";
+            size = "32G";
+            content = {
+              type = "swap";
+            };
+            options = {
+              volblocksize = "4096";
+              compression = "zle";
+              logbias = "throughput";
+              sync = "always";
+              primarycache = "metadata";
+              secondarycache = "none";
+              "com.sun:auto-snapshot" = "false";
+            };
+          };
+        };
+      };
+      zbackup = {
+        type = "zpool";
+        rootFsOptions = {
+          mountpoint = "none";
+          compression = "zstd";
+          acltype = "posixacl";
+          xattr = "sa";
+        };
+        options.ashift = "12";
+        datasets = {
+          "root" = {
+            type = "zfs_fs";
+            mountpoint = "/mnt/zbk";
+          };
+        };
+      };
+    };
+  };
+}