remote-builds: Fix 🙈

curacao/hardware.nix

@@ -27,7 +27,7 @@
       };
     };
     # Needs prefetched binary blobs, see https://nixos.wiki/wiki/Displaylink
-    services.xserver.videoDrivers = [ "nvidia" "displaylink" "modesetting" ];
+    services.xserver.videoDrivers = [ "displaylink" "modesetting" ];
   };
   imports = [
     nixos-hardware.nixosModules.dell-g3-3779

os/remote-builds/default.nix

@@ -42,8 +42,8 @@ in
       settings = {
         builders-use-substitutes = true;
         trusted-public-keys = publicKeys;
+        substituters = builtins.map (builder: "${builder.protocol}://${builder.sshUser}@${builder.hostName}") config.nix.buildMachines;
       };
     };
   };
 }
-# TODO Make it work. I think it just doesn't like non-standard SSH ports.