diff --git a/modules/nixos/config/nix/distibuted-build.nix b/modules/nixos/config/nix/distibuted-build.nix
index 5af6877..28382f6 100644
--- a/modules/nixos/config/nix/distibuted-build.nix
+++ b/modules/nixos/config/nix/distibuted-build.nix
@@ -15,7 +15,7 @@ in {
         sshServe = {
           enable = true;
           keys = map (f: readFile f) user.openssh.authorizedKeys.keyFiles;
-          # protocol = "ssh-ng";
+          protocol = "ssh-ng";
           trusted = true;
           write = true;
         };
@@ -34,11 +34,14 @@ in {
         buildMachines = [
           {
             hostName = "dunamis";
-            system = "x86_64-linux";
+            maxJobs = 3;
+            protocol = "ssh-ng";
             publicHostKey = pubHost;
+            speedFactor = 2;
             sshKey = secrets."ssh-${hostName}-user".path;
             sshUser = "nix-ssh";
             supportedFeatures = ["benchmark" "big-parallel" "kvm" "nixos-test"];
+            system = "x86_64-linux";
           }
         ];
       };