diff --git a/config-plasma.nix b/config-plasma.nix
index bbd6398..53ecd5f 100644
--- a/config-plasma.nix
+++ b/config-plasma.nix
@@ -13,6 +13,19 @@
        systemd-boot.enable = true;
     };
 
+    {
+       fileSystems."/" =  
+          { device = "/dev/disk/by-label/root" ;
+            fsType = "btrfs";
+            options = [ "subvol=nixos" "compress=zstd" "autodefrag" "noatime" ]; 
+          };
+
+        boot.initrd.luks.devices."crypt-root" = { 
+           device = "/dev/disk/by-label/root" ;
+           preLVM = true;
+        };
+    }
+
     # Name your host machine
     networking.hostName = "NixOS-VM";