Update packages.

nix/configuration/configuration.nix

@@ -118,14 +118,14 @@ in
     nix.settings.experimental-features = [
       "nix-command"
       "flakes"
-      # "ca-derivations"
+      "ca-derivations"
       # "blake3-hashes"
       # "git-hashing"
     ];
     nix.settings.trusted-users = [ "@wheel" ];
     nix.settings.connect-timeout = 5;
-    nix.settings.min-free = 5 * 1024 * 1024 * 1024; # Kick off garbage collect if space for nix store is less than 5 GiB
-    nix.settings.max-free = 10 * 1024 * 1024 * 1024; # Run that garbage collect until at least 10 GiB are free.
+    nix.settings.min-free = 128000000;
+    nix.settings.max-free = 1000000000;
     nix.settings.fallback = true;
     nix.settings.warn-dirty = false;
     nix.settings.fsync-metadata = true;

nix/kubernetes/configuration.nix

@@ -41,7 +41,7 @@
     nix.settings.experimental-features = [
       "nix-command"
       "flakes"
-      # "ca-derivations"
+      "ca-derivations"
       # "blake3-hashes"
       # "git-hashing"
     ];