diff --git a/common/themes/default.nix b/common/themes/default.nix
index eb64677..b082d3f 100644
--- a/common/themes/default.nix
+++ b/common/themes/default.nix
@@ -28,7 +28,7 @@ let
 
     catppuccin-macchiato = {
       stylix = {
-        image = ./wallpapers/breaking_phos.jpg;
+        image = ./wallpapers/lapis_lazuli.jpg;
         base16Scheme = "${inputs.catppuccin-base16}/base16/macchiato.yaml";
         polarity = "dark";
       };
diff --git a/dotfiles/neovim/ftplugin/tex.lua b/dotfiles/neovim/ftplugin/tex.lua
index 6048f8a..9d55e51 100644
--- a/dotfiles/neovim/ftplugin/tex.lua
+++ b/dotfiles/neovim/ftplugin/tex.lua
@@ -95,7 +95,7 @@ local abbreviations = {
   { "diprod", "\\dprod" }, -- custom self inner product command
   { "prob", "\\prob" }, -- custom probability function
   { "dist", "\\dist" }, -- custom dist function
-  { "ball", "\\ball" }, -- custom ball function
+  { "oball", "\\ball" }, -- custom ball function
   { "diam", "\\diam" }, -- custom diam operator
   { "gen", "\\gen" }, -- custom command for group generated by element
   { "ord", "\\ordop" }, -- order of a group
diff --git a/home/features/cli/fish/config.fish b/home/features/cli/fish/config.fish
index fe380c8..091e12c 100644
--- a/home/features/cli/fish/config.fish
+++ b/home/features/cli/fish/config.fish
@@ -41,3 +41,8 @@ function fish_user_key_bindings
   # }}}
 end
 # }}}
+# {{{ Helpers
+function take -d "Create a directory and cd into it"
+  mkdir $argv; and cd $argv
+end
+# }}}
diff --git a/home/features/cli/fish/default.nix b/home/features/cli/fish/default.nix
index ba1eb12..41ded22 100644
--- a/home/features/cli/fish/default.nix
+++ b/home/features/cli/fish/default.nix
@@ -12,6 +12,7 @@
       df = "df -h";
       du = "du -h";
       duh = "du -hd 1"; # short for du here
+      pdf = "zathura --fork"; # Open a pdf reader
     };
 
     # with pkgs.fishPlugins;
diff --git a/hosts/nixos/tethys/default.nix b/hosts/nixos/tethys/default.nix
index da679cb..e5600a5 100644
--- a/hosts/nixos/tethys/default.nix
+++ b/hosts/nixos/tethys/default.nix
@@ -40,6 +40,7 @@
   programs.firejail.enable = true;
   programs.extra-container.enable = true;
   virtualisation.docker.enable = true;
+  virtualisation.spiceUSBRedirection.enable = true;
   # }}}
   # {{{ Ad-hoc stylix targets
   # TODO: include this on all gui hosts