add disko

modules/_hardware/notebook-disko.nix

@@ -0,0 +1,60 @@
+{ lib, config, ... }: {
+  options.local.notebook.disk = lib.mkOption {
+    type        = lib.types.str;
+    default     = "/dev/nvme0n1";
+    description = "Target block device for the notebook. Change this if the machine does not have an NVMe drive (e.g. /dev/sda).";
+  };
+
+  config.disko.devices = {
+    disk.main = {
+      device = config.local.notebook.disk;
+      type   = "disk";
+      content = {
+        type = "gpt";
+        partitions = {
+          ESP = {
+            size = "512M";
+            type = "EF00";
+            content = {
+              type         = "filesystem";
+              format       = "vfat";
+              mountpoint   = "/boot";
+              mountOptions = [ "fmask=0077" "dmask=0077" ];
+            };
+          };
+
+          luks = {
+            size    = "100%";
+            content = {
+              type = "luks";
+              name = "cryptroot";
+              settings.allowDiscards = true;
+              content = {
+                type      = "btrfs";
+                extraArgs = [ "-f" ];
+                subvolumes = {
+                  "@root" = {
+                    mountpoint   = "/";
+                    mountOptions = [ "compress=zstd" "noatime" ];
+                  };
+                  "@nix" = {
+                    mountpoint   = "/nix";
+                    mountOptions = [ "compress=zstd" "noatime" ];
+                  };
+                  "@home" = {
+                    mountpoint   = "/home";
+                    mountOptions = [ "compress=zstd" "noatime" ];
+                  };
+                  "@log" = {
+                    mountpoint   = "/var/log";
+                    mountOptions = [ "compress=zstd" "noatime" ];
+                  };
+                };
+              };
+            };
+          };
+        };
+      };
+    };
+  };
+}