Node.js is an open-source, cross-platform JavaScript run-time environment that executes JavaScript code outside of a browser. JavaScript is used primarily for client-side scripting, in which scripts written in JavaScript are embedded in a webpage’s HTML and run client-side by a JavaScript engine in the user’s web browser. wiki
Project Jupyter (/ˈdʒuːpɪtər/ (About this soundlisten)) is a nonprofit organization created to “develop open-source software, open-standards, and services for interactive computing across dozens of programming languages”.
A heat map (or heatmap) is a graphical representation of data where the individual values contained in a matrix are represented as colors. “Heat map” is a newer term but shading matrices have existed for over a century. wiki
Git (/ɡɪt/) is a distributed version-control system for tracking changes in source code during software development. It is designed for coordinating work among programmers, but it can be used to track changes in any set of files. Its goals include speed, data integrity, and support for distributed, non-linear workflows wiki