Fix upgrade function, add yubikey notification for ssh.

config/zsh/.zshrc

@@ -23,6 +23,7 @@ source $ZDOTDIR/aliases.zsh
 source $ZDOTDIR/cleanhome.zsh
 source $ZDOTDIR/fzf.zsh
 source $ZDOTDIR/keys.zsh
+source $ZDOTDIR/ssh.zsh
 
 # source modules
 source ~/.local/git/zsh_modules/fast-syntax-highlighting/fast-syntax-highlighting.plugin.zsh

config/zsh/aliases.zsh

@@ -48,3 +48,10 @@ function ud() {
   for i in ${LOCAL_GIT_DIR}/dotfiles ${LOCAL_GIT_DIR}/zsh_modules/*; do git -C ${i} pull; done
   nvim -c "lua require('lazy').sync({wait = true})"
 }
+
+function upgrade() {
+  case $(lsb_release -si) in
+    Gentoo) eix-sync && eix-update && emerge -avuNDU @world ;;
+    VoidLinux) xbps-install -Su && xbps-remove -RoO && xlocate -S ;;
+  esac
+}

config/zsh/ssh.zsh

@@ -0,0 +1,6 @@
+if [[ ($uname -a) = "Darwin" ]]; then
+  function ssh() {
+    osascript -e 'display notification "Touch the YubiKey" with title "2fa required"'
+    /opt/homebrew/bin/ssh $*
+  }
+fi