phpTourney is a PHP script collection consisting of user management, news, match reports and of course the tourney logic for single- and double-elimination brackets.
It's released under the terms of the MIT license. Have a look at LICENSE for details.

A Dockerfile and docker-compose.yml is included. You can find all relevant information with respect to requirements and prerequisites in there.

To start up a development environment:
docker-compose up --build -d

To shut down the development environment:
docker-compose down

You then can access the website on http://127.0.0.1:8080

The default credentials for the administrator are:
Username: admin
Password: password

To get started:
- Register a new regular account, e.g. username 'doofus'
- Log in as 'admin' (and change the default password)
- Create a new section and season, and choose 'doofus' as headadmin
- From then on you manage that new season with the 'doofus' user