diff --git a/hosts/lappy/hardware-configuration.nix b/hosts/lappy/hardware-configuration.nix
index ea2f74b..e377b09 100644
--- a/hosts/lappy/hardware-configuration.nix
+++ b/hosts/lappy/hardware-configuration.nix
@@ -10,17 +10,23 @@
   boot.kernelModules = [ "kvm-intel" ];
   boot.extraModulePackages = [ ];
 
-  fileSystems."/" =
-    { device = "/dev/disk/by-uuid/d626409d-8166-45c2-a168-09dfab31b8a4";
+  fileSystems = {
+    "/" = {
+      device = "/dev/disk/by-uuid/d626409d-8166-45c2-a168-09dfab31b8a4";
       fsType = "btrfs";
-      options = [ "subvol=@nix-root" ];
+      options = [ "compress=zstd" "subvol=@nix-root" ];
     };
-
-  fileSystems."/home" = 
-    { device = "/dev/disk/by-uuid/d626409d-8166-45c2-a168-09dfab31b8a4";
+    "/home" = {
+      device = "/dev/disk/by-uuid/d626409d-8166-45c2-a168-09dfab31b8a4";
       fsType = "btrfs";
-      options = [ "subvol=@home" ];
+      options = [ "compress=zstd" "subvol=@home" ];
     };
+    "/nix" = {
+      device = "/dev/disk/by-uuid/d626409d-8166-45c2-a168-09dfab31b8a4";
+      fsType = "btrfs";
+      options = [ "compress=zstd" "subvol=@nix-store" "noatime"];
+    };
+  };
 
   boot.initrd.luks.devices."luksdev".device = "/dev/disk/by-uuid/100a5596-671b-48ba-a1d1-0723559baf87";