Concord

Console-based real-time messaging platform, inspired by Discord.

This platform is organized by many independent servers, each of which supports the following:

Multiple message channels. By default, there's one general channel.
Broadcasting itself on certain discovery servers for users to find. The server decides where it wants to be discovered, if at all.
Starting threads as spin-offs of a source message (with infinite recursion, i.e. threads within threads).
Private message between users in a server. No support for private messaging users outside the context of a server.
Banning users from the server.

Each server uses a single Nitrite database to hold messages and other information.