more work on hosts/ and modules/config

Signed-off-by: unexplrd <unexplrd@linerds.us>

hosts/sarien/configuration.nix

@@ -5,27 +5,33 @@
     self.nixosModules.config
     ./disko
     ./hardware
+    ./distributed-build.nix
   ];
 
   networking = {
+    networkmanager.enable = true;
     hostId = "31150fae";
     hostName = "sarien";
   };
 
+  environment.memoryAllocator.provider = "mimalloc";
   system.stateVersion = "25.05";
   time.timeZone = "Europe/Kyiv";
 
-  module.config = {
-    useIwd = true;
-  };
-  module.stylix = {
-    enable = true;
-    theme = "himalaya";
-  };
-
   desktop.niri.enable = true;
 
+  module = {
+    config = {
+      useIwd = true;
+    };
+    stylix = {
+      enable = true;
+      theme = "himalaya";
+    };
+  };
+
   locale.ukrainian.enable = true;
+  opentabletdriver.enable = false;
   qmk-vial.enable = true;
   security.basic.enable = true;
   virtual.libvirt.enable = true;