Amusewiki is based on the Emacs Muse markup, remaining mostly compatible with the original implementation. It can work as a read-only site, as a moderated wiki, or as a fully open wiki or even as a private site.

GPL-1.0

Perl

BentoPDF

The Privacy First PDF Toolkit

AGPL-3.0

Nodejs

BookStack

Organize and store information. Stores documentation in a book like fashion.

MIT

PHP

Bracket

Flexible tournament system to build a tournament setup, add teams, schedule matches, keep track of scores and present ranking live to the public.

AGPL-3.0

Docker