[crystaln]

This is neat atho I would agree it isn’t the right tool. The reason is that the time until a second message with the same content can be sent is indeterminate, based on how many intervening messages are sent. If your app does want to send the same notice twice, with an hour in between, and there are no intervening messages, it would fail, so the behavior is unpredictable.

A timed algorithm seems better suited. That said, it probably doesn’t matter much.