In addition to being fully modular, this bot is meant to be a single server, in order to allow advanced configuration and simple management of private messages (many modules are games that need to use private messages, and it wouldn't be nice to add a choice of server for each action).
For users, nothing could be simpler, you just install, register your bot on discordapp.com and let yourself be guided by !config.
For developers, all the documentation is here, and the source code is fully documented.