Improve taskwarrior sync setup

.task/hooks/on-exit.sync.sh

@@ -0,0 +1,20 @@
+#!/bin/sh
+
+# Inspired by https://gist.github.com/primeapple/d3d82fbd28e9134d24819dd72430888e
+
+source ~/.env
+
+log_file=~/.task/sync.log
+
+is_up() {
+  if ! nc -z $TASKD_SERVER $TASKD_PORT; then
+    echo "Server is down" >> $log_file
+    exit 1
+  fi
+}
+
+is_up
+date > $log_file
+task rc.verbose:nothing sync >> $log_file &
+
+exit 0