diff --git a/home-manager/modules/nixvim/keymaps.nix b/home-manager/modules/nixvim/keymaps.nix
new file mode 100644
index 0000000..6084b1c
--- /dev/null
+++ b/home-manager/modules/nixvim/keymaps.nix
@@ -0,0 +1,9 @@
+{ ... }:
+{
+  programs.nixvim.keymaps = [
+	  {
+		  action = "<cmd>Neotree toggle<CR>";
+			key = "l";
+		}
+	];
+}
diff --git a/home-manager/modules/nixvim/nixvim.nix b/home-manager/modules/nixvim/nixvim.nix
index a79328b..a52ba98 100644
--- a/home-manager/modules/nixvim/nixvim.nix
+++ b/home-manager/modules/nixvim/nixvim.nix
@@ -15,13 +15,14 @@
     opts = {
       relativenumber = true;
       clipboard = "unnamedplus";
-      tabstop = 4;
-      softtabstop = 4;
-      showtabline = 4;
+      tabstop = 2;
+      softtabstop = 2;
+      showtabline = 2;
     };
   };
   
   imports = [
+    ./keymaps.nix
     ./plugins-bundle.nix 
   ]; 
 }
diff --git a/nixos/modules/hardware/nvidia.nix b/nixos/modules/hardware/nvidia.nix
index dc7f8df..cfa8692 100644
--- a/nixos/modules/hardware/nvidia.nix
+++ b/nixos/modules/hardware/nvidia.nix
@@ -16,9 +16,9 @@
 
 
   hardware.nvidia.prime = {
-    sync.enable = true;
+    reverseSync.enable = true;
 
     nvidiaBusId = "PCI:1:0:0";
     amdgpuBusId = "PCI:4:2:0";
   };
-}
\ No newline at end of file
+}
diff --git a/nixos/modules/virtualbox.nix b/nixos/modules/virtualbox.nix
deleted file mode 100644
index a688f31..0000000
--- a/nixos/modules/virtualbox.nix
+++ /dev/null
@@ -1,9 +0,0 @@
-{
-  virtualisation.virtualbox.host = {
-    enable = true;
-    enableExtensionPack = true;
-  };
-
-  services.gvfs.enable = true;
-  services.udisks2.enable = true;
-}
\ No newline at end of file
diff --git a/nixos/modules/zapret.nix b/nixos/modules/zapret.nix
index 3d16d42..6b857e9 100644
--- a/nixos/modules/zapret.nix
+++ b/nixos/modules/zapret.nix
@@ -53,6 +53,7 @@
                 "7tv.app"
                 "7tv.io"
                 "10tv.app"
+                "x.com"
             ];
         };
     };