I am in a #meshcore pocket universe that very occasionally is able to get a packet out to another pocket on the far side of town across the river. They can usually get messages to me without much trouble due to their repeater's higher tx power.
So, I randomly start whispering strange nonsense into the aether and once in a blue moon those break containment, leading to the other mesh pocket sending confused replies back.
Eventually we'll have some repeaters in-between to fill in the gap and make bidirectional more reliable. For now, I amuse myself like this.
