berry/packages/yarnpkg-builder at master · yarnpkg/berry
A CLI tool designed for creating, building, and managing complex plugins. This version of the builder is for creating plugins for Yarn 3.x. Yarn 3 plugins are not compatible with Yarn 2 installations, however Yarn 2 plugins are usually compatible with Yarn 3.
https://github.com/yarnpkg/berry/tree/master/packages/yarnpkg-builder
