MeshCore separates conversations into channels, just like a group chat with different rooms.
The default shared channel everyone on the mesh can see. This is where NJ Mesh community members say hi, share updates, and help troubleshoot. It uses MeshCore's default public encryption key, so any MeshCore device can read it — think of it as the town square, not a private chat.
Set up your own private channel with friends, family, or a group by sharing a unique channel key between your devices. Only people with that key can read the messages — good for a household, a hiking group, or a neighborhood watch.