diff --git a/systems/x86_64-linux/builder/default.nix b/systems/x86_64-linux/builder/default.nix
index bfa780f..14f922f 100644
--- a/systems/x86_64-linux/builder/default.nix
+++ b/systems/x86_64-linux/builder/default.nix
@@ -70,17 +70,17 @@
   nix.optimise.automatic = true;
   nix.optimise.dates = [ "03:15" ];
 
-  nix.gc.automatic = true;
-  nix.gc.dates = "daily";
-  nix.gc.options = "--delete-old";
+  # nix.gc.automatic = true;
+  # nix.gc.dates = "daily";
+  # nix.gc.options = "--delete-old";
 
   # nix.settings.keep-derivations = false;
   # nix.settings.keep-outputs = true;
 
-  # Garbage collect up to 30 GiB when only 6 GiB storage left
+  # Garbage collect up to 100 GiB when only 20 GiB storage left
   nix.extraOptions = ''
-    min-free = ${toString (6 * 1024 * 1024 * 1024)}
-    max-free = ${toString (30 * 1024 * 1024 * 1024)}
+    min-free = ${toString (20 * 1024 * 1024 * 1024)}
+    max-free = ${toString (100 * 1024 * 1024 * 1024)}
   '';
 
   environment.systemPackages = with pkgs; [
@@ -132,6 +132,7 @@
   ];
   users.users."nix".openssh.authorizedKeys.keys = [
     "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFjSZYdoF/51F+ykcBAYVCzCPTF5EEigWBL1APiR0h+H julian@aspi"
+    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIAIQ+qMuXvyoxO1DuCR3/x+IQRfSA2WyMuzuotWZjCye root@aspi"
     "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHnfLJnS2SKUs47J0qpLTkk0LQA5quOuAhnxE6yppUDm root@kardorf"
   ];