hosts/nixos-laptop/default.nix

@@ -107,6 +107,22 @@
     wantedBy = [ "multi-user.target" ];
   };
 
+  nix = {
+    distributedBuilds = true;
+    buildMachines = [
+      {
+        hostName = "builder";
+        system = "x86_64-linux";
+        maxJobs = 6;
+        speedFactor = 2;
+        supportedFeatures = [ "nixos.test" "benchmark" "big-parallel" "kvm" ];
+      }
+    ];
+    extraOptions = ''
+      builders-use-substitutes = true
+    '';
+  };
+
   programs.ssh.extraConfig = ''
     Host builder
       Hostname 192.168.0.14