diff --git a/hosts/lupine/hardware-configuration/lupine-5.nix b/hosts/lupine/hardware-configuration/lupine-5.nix
index a47b892..94d9bf9 100644
--- a/hosts/lupine/hardware-configuration/lupine-5.nix
+++ b/hosts/lupine/hardware-configuration/lupine-5.nix
@@ -1,4 +1,4 @@
-# Do not modify this file!  It was generated by 'nixos-generate-config'
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
 # and may be overwritten by future invocations.  Please make changes
 # to /etc/nixos/configuration.nix instead.
 { config, lib, pkgs, modulesPath, ... }:
@@ -14,27 +14,27 @@
   boot.extraModulePackages = [ ];
 
   fileSystems."/" =
-    { device = "/dev/disk/by-uuid/5f8418ad-8ec1-4f9e-939e-f3a4c36ef343";
-      fsType = "ext4";
+    { device = "/dev/disk/by-uuid/85830e14-e2c8-4f04-95fa-d6ab22840bc7";
+      fsType = "btrfs";
+      options = [ "subvol=@root" "compress=zstd" ];
+    };
+
+  fileSystems."/nix" =
+    { device = "/dev/disk/by-uuid/85830e14-e2c8-4f04-95fa-d6ab22840bc7";
+      fsType = "btrfs";
+      options = [ "subvol=@nix" "noatime" "compress=zstd" ];
     };
 
   fileSystems."/boot" =
     { device = "/dev/disk/by-uuid/F372-37DF";
       fsType = "vfat";
-      options = [ "fmask=0077" "dmask=0077" ];
+      options = [ "fmask=0022" "dmask=0022" ];
     };
 
   swapDevices =
     [ { device = "/dev/disk/by-uuid/27bf292d-bbb3-48c4-a86e-456e0f1f648f"; }
     ];
 
-  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
-  # (the default) this is the recommended approach. When using systemd-networkd it's
-  # still possible to use this option, but it's recommended to use it in conjunction
-  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
-  networking.useDHCP = lib.mkDefault true;
-  # networking.interfaces.enp0s31f6.useDHCP = lib.mkDefault true;
-
   nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
   hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
 }