It has a concept of users and messages. Each user can leave messages on the board, and read the messages from the other users.
It is recommended to run it inside a virtualenv.
create a virtualenv:
$ virtualenv msgboard
clone msgboard in your virtualenv:
$ cd msgboard $ hg clone https://bitbucket.org/benallard/msgboard
install the dependencies:
$ cd msgboard $ pip install -r pip-requirements.txt
see it running:
$ python createdb.py $ python runserver.py
By pointing your browser to http://localhost:5000 you should be welcomed with a page asking you if you want to remains anonymous or enter your name in the next page.
The documentation (if any), is hosted by readthedocs.