That’s what HomeKitty does already: after a reboot it will wait (and wait, and wait) until it sees that there are no more new devices being created (by other apps). At that point it will start doing its job.
However, if apps also implement delays before they create their devices, this method fails.
I could add a static delay, say 10 minutes, but I’m sure an app developer will come along and for some reason delay their own app for 11 minutes, and we run into the same problem.
