TL;DR: WordPress Contributor Toolkit v2.0.0 has been released with a new interface built on the WordPress Design System, a settings dialog, a dark theme, and translations into ten languages.
The WordPress Contributor Toolkit removes the points of friction first-time contributors face before they write a line of code, especially during Contributor Days. You do not have to install Git, Node.js, npm, or Docker on your machine.
The app started by setting up a full WordPress Core development environment. Version 1.0 added the full Core contribution workflow, from reading a Trac ticket to sending your fix back as a pull request
