diff --git a/nixos/boxes/foureighty.nix b/nixos/boxes/foureighty.nix
index bf73e22f..181470da 100644
--- a/nixos/boxes/foureighty.nix
+++ b/nixos/boxes/foureighty.nix
@@ -38,12 +38,12 @@
     ../boot.nix
     ../common.nix
     ../gfx-intel.nix
-    ../virtualbox.nix
     ../zerotier.nix
     ../i3/system.nix
     ../distributed-builds.nix
+    ../libvirt.nix
   ];
 
-  nix.maxJobs = 4;
-  nix.buildCores = 2;
+  nix.maxJobs = 2;
+  nix.buildCores = 6;
 }
diff --git a/nixos/common-hardware.nix b/nixos/common-hardware.nix
index 285acd8b..7875f162 100644
--- a/nixos/common-hardware.nix
+++ b/nixos/common-hardware.nix
@@ -12,7 +12,6 @@
     extraModules = [ pkgs.pulseaudio-modules-bt ];
   };
   hardware.u2f.enable = true;
-  hardware.brightnessctl.enable = true;
   hardware.sane.enable = true;
   hardware.bluetooth = {
     enable = true;
diff --git a/nixos/gui.nix b/nixos/gui.nix
index 4451d180..15143a1c 100644
--- a/nixos/gui.nix
+++ b/nixos/gui.nix
@@ -4,7 +4,7 @@
   home.packages = with pkgs; [
     passff-host
     gnome3.gnome-screenshot
-    xpdf apvlv xidlehook blueman
+    apvlv xidlehook blueman
     fontconfig xclip gimp glxinfo
     notable evince signal-desktop
     libreoffice vlc
diff --git a/nixos/home.nix b/nixos/home.nix
index 15303eaf..2d23a512 100644
--- a/nixos/home.nix
+++ b/nixos/home.nix
@@ -15,7 +15,7 @@ in
     };
 
     home.sessionVariables = {
-      TERMINAL="termite";
+      TERMINAL="alacritty";
       CM_LAUNCHER="rofi";
       PASSWORD_STORE_ENABLE_EXTENSIONS="true";
     };
@@ -23,7 +23,7 @@ in
     imports = [
       ./programs/tmux.nix
       ./programs/zsh.nix
-      ./programs/termite.nix
+      ./programs/alacritty.nix
       ./programs/git.nix
       ./programs/vim.nix
       ./programs.nix
diff --git a/nixos/libvirt.nix b/nixos/libvirt.nix
new file mode 100644
index 00000000..768bd814
--- /dev/null
+++ b/nixos/libvirt.nix
@@ -0,0 +1,4 @@
+{ config, pkgs, ... }:
+{
+  virtualisation.libvirtd.enable = true;
+}