Docusaurus : Easy to Maintain Open Source Documentation Websites
Tiny Tiny RSS : Tiny Tiny RSS is a free and open source web-based news feed (RSS/Atom) reader and aggregator.
Feedbin : Feedbin is an open source web based RSS reader. It provides a user interface for reading and managing feeds as well as a REST-like API for clients to ...
Documize is an open source modern, lightweight and comprehensive alternative to Confluence.
It's built with Golang + EmberJS and compiled down to a single executable binary for Linux, Windows and macOS.