Slack Poker Bot - A bot that turns Slack into a Texas Hold'em client
Ansible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine
PlayPlay.io - Chess and Ping Pong tracking in Slack
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
Poker in Place - Video poker with your friends while you shelter in place
Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.