diff --git a/systems/jeeves/runners/nix_builder.nix b/systems/jeeves/runners/nix_builder.nix
index a181d26..46af0c7 100644
--- a/systems/jeeves/runners/nix_builder.nix
+++ b/systems/jeeves/runners/nix_builder.nix
@@ -43,6 +43,8 @@ let
         useHostResolvConf = false;
       };
       nix.settings = {
+        cores = 8;
+        max-jobs = 2;
         system-features = lib.mkAfter [
           "gccarch-x86-64-v2"
           "gccarch-x86-64-v3"
@@ -195,6 +197,7 @@ in
           value = {
             requires = [ "gitea.service" ];
             after = [ "gitea.service" ];
+            serviceConfig.CPUQuota = "800%";
           };
         }) (builtins.attrNames (filterAttrs (_: c: c.enable) cfg.containers))
       );