ProseMirror is a modular toolkit for building rich text editors (WYSIWYM - What You See Is What You Mean) based on contentEditable. Rather than a standalone application, it provides a structured approach to content editing through separate packages for document modeling, state management, view rendering, transformations, and collaborative editing. The repository serves as a meta-repository that coordinates development across the various prosemirror-* packages, providing scripts for installation, building, testing, and releasing the ecosystem. The bin/pm script is a particularly well-crafted development tool for managing multi-package monorepos.

This repository is the website and documentation system for ProseMirror, a rich text editor library. It serves https://prosemirror.net, hosting the front-page, documentation, examples, and collaborative editing demos. The architecture consists of a static site built from markdown/templates, a Node.js development server with module serving capabilities, and a collaborative editing backend using operational transformation. Key entry points include the dev server (src/devserver.js), collaboration backend (src/collab/server/start.js), and various build scripts that bundle examples and generate documentation from source files.