Metasploit Framework

Vagrant is a tool for building and distributing development environments.

Fluentd: Unified Logging Layer (project under CNCF)

Guard is a command line tool to easily handle events on file system modifications.

Authorization service and frontend for Docker registry (v2)

GH Archive is a project to record the public GitHub timeline, archive it, and make it easily accessible for further analysis.

A make-like build utility for Ruby.

An online repository of user scripts.

The Journal of Open Source Software

Watir Powered By Selenium

Build and distribute Linux packages from sources in an automatic, consistent and reproducible way #obs

A service-based Linux installer

A way to keep Trello boards updated with JIRA ticket information (comments, details, attachments)