The *taiga* role installs the three components of Taiga:
* taiga-back
* taiga-events
* taiga-front
*taiga-back* is a Python application. Its dependencies are installed via
`pip` in the *taiga* user's site-packages, and the application itself is
installed by unpacking the archive. *taiga-events* is a Node.js
application. Its dependencies are installed by `npm`, and is itself
installed by unpacking the archive. Finally, *taiga-front* is a
single-page browser application that is installed by unpacking the
archive, and served by Apache.
Taiga requires PostgreSQL and RabbitMQ.