This repository is a monorepo containing Blockly plugins and example applications that demonstrate how to extend and customize the Blockly visual programming library. It provides reusable UI components (custom fields, toolbox enhancements, workspace minimap), real-time collaboration features, and developer tools for creating custom blocks. The architecture follows a plugin pattern where each extension is self-contained with its own source, tests, and package.json. Examples showcase practical integrations like block factories, serialization, and multi-user editing. The codebase is actively maintained with regular updates to track Blockly releases and employs Lerna for workspace management.