An Explorative, Self-supporting, Web-based Development Environment

Getting Started

Directly start developing in your Chrome by visiting lively4 and follow the Getting Started Guide. Through checking out and serving git repositories with the lively4-server, we can directly edit and use the environment in a self-supporting way.

A project or branch of a project on GitHub can be checked out in multiple directories at once. Working on the same URL allows to collaborate in a very tight way, working in a separate directory provides more distance.

• lively4-core
• lively4-stable
• lively4-jens
• aexpr

The Lively4 server and GitHub sync tools can check out arbitrary projects, such as the code of lively4-server itself, or the source of a paper hosted by overleaf.

For AI Assistants & Developers

• CLAUDE.md: Essential commands and patterns for Claude Code
• llms.txt: LLM-friendly project overview and documentation index
• AI Coding Agent Instructions: Essential patterns and conventions for AI agents working in the codebase

Authors / Contributors

• Sofware Architecture Group, Hasso Plattner Institute, 2015-2025 MIT LICENSE
• Jens Lincke, Stefan Ramson, Tim Felgentreff, Fabio Niephaus, Robert Hirschfeld, Marcel Taeumel
• Seminars

  • Software Design SWD 2015 SWD 2016

  • Web-based Development WebDev 2016, WebDev 2017/18

  • Programming Experience PX 2018

  • Reactive Programming RP 2018

Imprint