The radio will store a small amount of packets (around 30) in its memory for when it’s not connected to a client app. If it’s full, it will replace the oldest packets with newly incoming text messages only.
And yes, they persist if you restart the node. Not sure what you mean by “terminal”, there are a couple of CLI tools for meshtastic, including a practically complete chat app.
https://meshtastic.org/docs/overview/
And yes, they persist if you restart the node. Not sure what you mean by “terminal”, there are a couple of CLI tools for meshtastic, including a practically complete chat app.