Test

nixos/default.nix

@@ -49,6 +49,8 @@
     cryptsetup
     parted
     screen
+    alejandra
+    nixfmt
   ];
 
   # Select internationalisation properties.

nixos/hosts/nixos-vm-02/disks-btrfs.nix

@@ -0,0 +1,59 @@
+{
+  boot.loader.grub.device = "/dev/sda";
+  boot.initrd.luks.devices."sda2".device = "/dev/sda2";
+  services.btrfs.autoScrub.enable = true;
+  services.btrfs.autoScrub.interval = "weekly";
+
+  disko.devices.disk.sda = {
+    device = "/dev/sda";
+    content = {
+      type = "table";
+      format = "gpt";
+      partitions = [ 
+        {
+          name = "BOOT";
+          start = "0%";
+          end = "550MiB";
+          bootable = true;
+          flags = [ "esp" ];
+          fs-type = "fat32";
+          content = {
+            type = "filesystem";
+            format = "vfat";
+            mountpoint = "/boot";
+          };
+        } # partition 1
+        { 
+          name = "LUKS";
+          start = "550MiB";
+          end = "100%";
+          content = {
+            type = "luks";
+            name = "LUKS-ROOT";
+            extraOpenArgs = [ "--allow-discards" ];
+            settings.keyFile = "/tmp/secret.key";
+            content = {
+              type = "filesystem";
+              format = "btrfs";
+              # extraArgs = [ "-f" ];
+              subvolumes = {
+                "/root" = {
+                  mountpoint = "/";
+                  mountOptions = [ "compress=zstd" "noatime" ];
+                }; # root
+                "/home" = {
+                  mountpoint = "/home";
+                  mountOptions = [ "compress=zstd" "noatime" ];
+                }; # home
+                "/nix" = {
+                  mountpoint = "/nix";
+                  mountOptions = [ "compress=zstd" "noatime" ];
+                }; # nix
+              }; # subvolumes
+            }; # content.content
+          }; # content
+        } # partition 2
+      ]; # partitions
+    }; # content
+  }; # disko.devices.disk.sda
+} # root

nixos/hosts/nixos-vm-02/disks.nix

@@ -33,8 +33,9 @@
             extraOpenArgs = [ "--allow-discards" ];
             settings.keyFile = "/tmp/secret.key";
             content = {
-              type = "btrfs";
+              type = "filesystem";
-              # extraArgs = [ "-f" ];
+              format = "btrfs";
+              extraArgs = [ "-f" ];
               subvolumes = {
                 "/root" = {
                   mountpoint = "/";

shell.nix

@@ -18,6 +18,8 @@
       pkgs.home-manager
       pkgs.git
       pkgs.vim
+      pkgs.alejandra
+      pkgs.nixfmt
       (pkgs.callPackage sops-nix {}).sops-import-keys-hook
     ];
   };