Apache Superset is a Data Visualization and Data Exploration Platform
✂A collection of useful .htaccess snippets.
Apache Airflow - A platform to programmatically author, schedule, and monitor workflows
Zulip server and webapp - powerful open source team chat
GoAccess is a real-time web log analyzer and interactive viewer that runs in a terminal in *nix systems or through your browser.
A powerful, interactive charting and data visualization library for browser