You-Get - Command-line utility to download media contents from the web
Ansible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine
Every Second - Realtime stats per second of Apple and YouTube
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
YouTubeDLD - World's most efficient YouTube downloader. No spam or ads.
Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.