diff --git a/ops/machines/build01/default.nix b/ops/machines/build01/default.nix
index ae34dc755..812135862 100644
--- a/ops/machines/build01/default.nix
+++ b/ops/machines/build01/default.nix
@@ -34,6 +34,8 @@ in
   boot.loader.initScript.enable = true;
   system.switch.enableNg = false;
   nix.package = pkgs.nix_2_3;
+  nix.nrBuildUsers = 256;
+  nix.settings.max-jobs = 64;
 
   networking = {
     useNetworkd = true;