diff --git a/hosts/nas/hardware-configuration.nix b/hosts/nas/hardware-configuration.nix
index 0147634..575b5af 100644
--- a/hosts/nas/hardware-configuration.nix
+++ b/hosts/nas/hardware-configuration.nix
@@ -44,17 +44,18 @@
     fileSystems = [
       "/"
       "/mnt/Pluto"
-#      "/mnt/Mars"
     ];
   };
 
   services.btrbk = {
       instances = {
           hf = {
+              onCalendar = "hourly";
               settings = {
                   incremental = "yes";
                   snapshot_create = "ondemand";
                   snapshot_dir = "@snapshots";
+                  timestamp_format = "long";
 
                   snapshot_preserve = "2m 2w 5d 5h";
                   snapshot_preserve_min = "latest";
@@ -105,13 +106,13 @@
     fileSystems."/mnt/snapshots/Mars" =
     { device = "/dev/disk/by-label/NIXROOT";
       fsType = "btrfs";
-      options = [ "compress=zstd,space_cache=v2,ssd,noatime,subvol=@snapshots/mars/home,discard=async" ];
+      options = [ "compress=zstd,space_cache=v2,ssd,noatime,subvolid=5,discard=async" ];
     };
 
   fileSystems."/mnt/snapshots/Pluto" =
     { device = "/dev/disk/by-label/NAS-RAID";
       fsType = "btrfs";
-      options = [ "compress=zstd,space_cache=v2,noatime,subvol=@snapshots" ];
+      options = [ "compress=zstd,space_cache=v2,noatime,subvolid=5" ];
     };
 
   fileSystems."/mnt/Pluto" =