A library for building online participation software. It is maintained and developed by Liquid Democracy e.V. and heavily relies on the Django web framework.
Examples of using adhocracy4 are a+, meinBerlin and Civic Europe. The first two being online participation platforms implementing different processes like idea collections or debates, and the latter using adhocracy4 as the basis for a transparent idea challenge.
To try it out yourself, best start with [a+][https://github.com/liqd/adhocracy-plus/blob/main/docs/installation_prod.md].