reduce time to keep garbage

nixos/common/global/nix.nix

@@ -9,7 +9,7 @@
       # Automatically run the garbage collector an a specified time.
       automatic = true;
       dates = "weekly";
-      options = "--delete-older-than 28d";
+      options = "--delete-older-than 14d";
     };
 
     # This will add each flake input as a registry

nixos/common/optional/ephemeral-btrfs.nix

@@ -26,7 +26,7 @@ in {
         btrfs subvolume delete "$1"
     }
 
-    for i in $(find /btrfs_tmp/old_roots/ -maxdepth 1 -mtime +30); do
+    for i in $(find /btrfs_tmp/old_roots/ -maxdepth 1 -mtime +14); do
         delete_subvolume_recursively "$i"
     done
 

nixos/fuchsia/hardware-configuration.nix

@@ -37,7 +37,7 @@
       };
       systemd-boot = {
         enable = true;
-        configurationLimit = 20;
+        configurationLimit = 14;
       };
     };
   };