diff --git a/nixos/boot.nix b/nixos/boot.nix
index 08adf58b..8a582e0a 100644
--- a/nixos/boot.nix
+++ b/nixos/boot.nix
@@ -8,6 +8,11 @@
     kernel.sysctl = {
       "vm.swappiness" = 1;
       "max_user_watches" = 524288;
+      "kernel.dmesg_restrict" = true;
+      "kernel.unprivileged_bpf_disabled" = true;
+      "kernel.unprivileged_userns_clone" = 1;
+      "net.core.bpf_jit_enable" = pkgs.lib.mkDefault false;
+      "net.core.bpf_jit_harden" = true;
     };
     loader.grub = {
       enable = true;
@@ -15,4 +20,5 @@
       useOSProber = true;
     };
   };
+
 }
diff --git a/nixos/boxes/foureighty.nix b/nixos/boxes/foureighty.nix
index 43fea1ca..51e947c5 100644
--- a/nixos/boxes/foureighty.nix
+++ b/nixos/boxes/foureighty.nix
@@ -2,8 +2,20 @@
 {
 
   networking.hostName = "foureighty";
+  nixpkgs.config.packageOverrides = pkgs: {
+    linux_latest_hardened = pkgs.linux_latest_hardened.override {
+      extraConfig = ''
+        IA32_EMULATION y
+        KVM m
+        KVM_INTEL m
+      '';
+      features.ia32Emulation = true;
+      enableParallelBuilding = true;
+    };
+  };
+
   boot = {
-    kernelPackages = pkgs.linuxPackages_latest_hardened;
+    kernelPackages = pkgs.linuxPackagesFor pkgs.linux_latest_hardened;
     extraModulePackages = with config.boot.kernelPackages; [ wireguard ];
 
     initrd.kernelModules = [ "i915" ];
@@ -43,7 +55,9 @@
 
     hardware.nvidiaOptimus.disable = true;
     hardware.opengl.extraPackages = [ pkgs.linuxPackages.nvidia_x11.out ];
-    hardware.opengl.extraPackages32 = [ pkgs.linuxPackages.nvidia_x11.lib32 ];
+    hardware.opengl.extraPackages32 = [ pkgs.linuxPackages.nvidia_x11.lib32 pkgs.pkgsi686Linux.libva ];
+    hardware.opengl.driSupport32Bit = true;
+    hardware.pulseaudio.support32Bit = true;
 
     imports = [
       /etc/nixos/hardware-configuration.nix
diff --git a/nixos/common.nix b/nixos/common.nix
index fe4f8736..153f3501 100644
--- a/nixos/common.nix
+++ b/nixos/common.nix
@@ -46,6 +46,8 @@ in
 
       fonts.fonts = with pkgs; [ powerline-fonts weather-icons material-icons source-code-pro fira-code noto-fonts-emoji emojione iosevka ];
 
+      services.haveged.enable = true;
+
       nix = {
         autoOptimiseStore = true;
         daemonIONiceLevel = 7;
diff --git a/nixos/gui.nix b/nixos/gui.nix
index 929f9353..3106bd3f 100644
--- a/nixos/gui.nix
+++ b/nixos/gui.nix
@@ -9,10 +9,12 @@
     notable evince signal-desktop
     libreoffice unstable.tor-browser-bundle-bin vlc
     jetbrains.goland unstable.jetbrains.clion jetbrains.idea-ultimate unstable.android-studio
-    (wine.override { wineBuild = "wineWow"; }) winetricks
     yubico-piv-tool yubikey-personalization yubikey-personalization-gui yubikey-manager-qt
     slack discord obs-studio gnome3.nautilus gnome3.eog
     hopper
+    (wine.override { wineBuild = "wineWow"; }) winetricks
+    steam
+#    (steam.override { withPrimus = true; extraPkgs = pkgs: [ bumblebee glxinfo ]; nativeOnly = true; })
   ];
 
 }