diff --git a/.config/zsh/rc.d/50-mobile.zsh b/.config/zsh/rc.d/50-mobile.zsh
index f73534d..45310d5 100644
--- a/.config/zsh/rc.d/50-mobile.zsh
+++ b/.config/zsh/rc.d/50-mobile.zsh
@@ -28,3 +28,9 @@ bench() {
 # The previous configuration exported PYTHONPATH=/usr/lib/python3.9/site-packages.
 # That is a Linux path and does not exist on macOS at all; beastix and shron
 # carried the same line pointing at 3.9 and 3.4 respectively. None are kept.
+
+# The base defines "update" only where yay exists, which is the two Arch
+# machines. This is the Mac's equivalent, and it was the one thing genuinely
+# lost in the first checkout here - the eight macports aliases that also
+# disappeared pointed at a "port" command this machine does not have.
+alias update="brew update && brew upgrade && brew upgrade --cask && brew upgrade --greedy && brew cleanup"