Use sudo keepalive to ensure that we don't get a sudo timeout on a long-running install

bin/omarchy-sudo-keepalive

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+# Prompt for sudo once and keep the credential alive in the background.
+# Source this script so the trap applies to the calling shell:
+#   source omarchy-sudo-keepalive
+
+sudo -v
+while true; do sudo -n true; sleep 60; done 2>/dev/null &
+SUDO_KEEPALIVE_PID=$!
+trap "kill $SUDO_KEEPALIVE_PID 2>/dev/null" EXIT