removing open ports when sibling project removed

updates.d/80-firewall.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+# Runs after 71-siblings.sh so ports added in a sibling's latest commit open
+# in the same update
+
+source "$HOME/.local/share/MiniServer/utils.sh"
+
+# Defined after sourcing utils.sh, which has its own is_installed
+is_installed() {
+  pacman -Qi firewalld &> /dev/null
+}
+
+run_update() {
+  setup_firewall
+}