diff --git a/doom/.config/doom/config.el b/doom/.config/doom/config.el
index 88256c7..e48e96a 100644
--- a/doom/.config/doom/config.el
+++ b/doom/.config/doom/config.el
@@ -107,11 +107,6 @@ the compiled PDF version) in pympress."
   :config
   (edit-server-start))
 
-;; LaTeX
-(if (string-match "tycho" (system-name))
-  (setq +latex-viewers nil)
-  (remove-hook 'LaTeX-mode-hook 'preview-mode-setup))
-
 ;; Whenever you reconfigure a package, make sure to wrap your config in an
 ;; `after!' block, otherwise Doom's defaults may override your settings. E.g.
 ;;
diff --git a/zsh/.zprofile b/zsh/.zprofile
index 607d5f3..c4e3308 100644
--- a/zsh/.zprofile
+++ b/zsh/.zprofile
@@ -34,7 +34,7 @@ fi
 [ -f $HOME/.cargo/env ] && source $HOME/.cargo/env
 
 # nim
-export PATH=$HOME/.nimble/bin:$PATH
+pathadd_tail "$HOME/.nimble/bin"
 
 # Preferences
 export CALIBRE_USE_SYSTEM_THEME=0
@@ -42,7 +42,7 @@ export CALIBRE_USE_DARK_PALETTE=1
 
 # macOS
 [ -f /opt/homebrew/bin/brew ] && eval "$(/opt/homebrew/bin/brew shellenv)"
-eval "$(rbenv init - zsh)"
+hash rbenv &>/dev/null && eval "$(rbenv init - zsh)"
 export LOLCOMMITS_DELAY=2
 
 export PATH