GitLab is a single application for the entire software development lifecycle. From project planning and source code management to CI/CD, monitoring, and security. GitLab provides Git based version control, packaged with a complete DevOps toolchain. Somewhat like GitHub, but much, much more.

MoinMoin is an easy to use and extensible Wiki engine implemented in Python with a large community of users. MoinMoin's storage mechanism are flat files and folders, rather than a database. This makes it easy to manipulate the content in a text editor on the server if necessary, including managing revisions if the wiki gets attacked by spammers.

BookStack is a simple, self-hosted, easy-to-use platform for organising and storing information. It includes a simple WYSIWYG interface or optional markdown editor with live-preview. BookStack is built using PHP (Laravel framework), backed by a MySQL/MariaDB database. The content is fully searchable and includes cross-linking ability, page revisions and image management.

BookStack includes all the standard features in TurnKey Core, and on top of that:

Foswiki is a structured wiki, typically used to run a collaboration platform, knowledge or document management system, a knowledge base, or team portal. Users can create wiki applications using the Foswiki Markup Language, and developers can extend its functionality with plugins.