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-rw-r--r--machines/profpatsch/katara.nix4
1 files changed, 4 insertions, 0 deletions
diff --git a/machines/profpatsch/katara.nix b/machines/profpatsch/katara.nix
index c8f625af..336c31ad 100644
--- a/machines/profpatsch/katara.nix
+++ b/machines/profpatsch/katara.nix
@@ -93,6 +93,10 @@ in {
         supportedFeatures = [ "big-parallel" ];
       }
     ];
+    nix.extraOptions = ''
+      builders-use-substitutes = true
+      auto-optimise-store = true
+    '';
 
     ##########
     # Network